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1999 Chevrolet Silverado The service engine soon light is on with trouble code P1416 present

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Filed Under (Chevrolet Manuals) by admin on 07-05-2012

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Tests/Procedures: 1. Use a scanner and command the air pump on with the engine running at idle. Check if the O2 sensors go lean. 2. If the O2 sensor does not go lean on one bank, see if the check valve at the exhaust manifold is stuck closed, not allowing air into the manifold. Potential Causes: Defective Check Valve Diagnostic Codes: P1416 Author: Christopher Pittman Average Reported Mileage: 85812 Confirmed Fix Summary Confirmed Fix 18 – Air Injection Reaction (AIR) Check Valve 1 – Air Injection Reaction (AIR) Check Valve, Air Injection Reaction (AIR) Pump Confirmed Fix Details Tech Reported Fix Details Confirmed Fix Lee Stroup Sr. November 15, 2007 2001 Chevrolet Silverado 1500, 5.3L, Vin T, Eng Cfg V8 * A.I.R. Check Valve – removed check valves, found one rusted closed, one restricted, replaced both valves. Moisture from exhaust seems to have rusted both valves. Air Injection Reaction (AIR) Check Valve Paul Puleo August 20, 2009 1999 Chevrolet Camaro, Z28 5.7L * Replaced Both Air Injection Reaction (AIR) Check Valves – bank 2 AIR check valve restrticted, bank 1 slightly restricted replaced both Air Injection Reaction (AIR) Check Valve SouthGate January 05, 2009 2000 Chevrolet Silverado 1500, 4.8L, Vin V, Eng Cfg V8 * Replaced Air Injection Reaction (AIR) Check Valve – replaced boht check valves. fix the code. Air Injection Reaction (AIR) Check Valve Dwight Heckman July 31, 2008 2000 Chevrolet Blazer, 4.3L * Check Valve – replacing the check valve and cleaning out the lines repaired the problem. Air Injection Reaction (AIR) Check Valve Nick Secchitano June 16, 2009 2000 Chevrolet Silverado 1500, 5.3L, Vin T, Eng Cfg V8 * Replaced Both Air Injection Reaction (AIR) Check Valves – Air injection check valves Air Injection Reaction (AIR) Check Valve Mark Bertelsen 1998 Chevrolet Camaro, Z28 5.7L * Replaced Air Injection Reaction (AIR) Check

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1984-1995 Honda Accord/Prelude In­Tank Fuel Pumps TEST/REPAIR MANUAL

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Filed Under (Honda Manuals) by admin on 03-07-2012

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Carbureted Fuel System GENERAL INFORMATION On these vehicles, the engine management system is considered part of the emission control system. The major components include the carburetor(s), feedback control system, the air injection system, a throttle control system and the EGR system. The system consists of sensors and switches that feed information to the Electronic Control Unit (ECU), which will then operate several solenoid valves to maintain the ideal air/fuel ratio under all conditions. As useful as the tests found in this section are, the first step in repair or service to engine management systems is still to gain as much information as possible about the problem; when and under what conditions it occurs. At highway speed? At idle only? Only under heavy load or hard acceleration? Wet weather? Defining the problem will eliminate many systems from consideration and possibly point to the affected system. Before diving into an extended electrical diagnosis, take the time to review the basics. Check every vacuum line for cracks or leaks. Check every electrical connector for corrosion or loose pins. Quite often, simply unplugging and reconnecting a connector will break up corrosion on the pins and restore the circuit. Watch out for poor grounds, particularly if the car has experienced major bodywork. COMPONENT TESTING Air Injection System The purpose of this system is to supply oxygen to the exhaust stream at a point in the exhaust manifold that is hot enough to burn off some of the hydrocarbon emissions. The main component is an air suction valve. The valve is spring loaded to stay closed, with engine vacuum supplied to a diaphragm that reduces the spring pressure and allows the reeds to open. The ECU regulates the engine vacuum to the diaphragm by operating a solenoid valve. 1. With the engine at normal operating temperature and at idle, remove the air cleaner and listen for a bubbling sound at the air suction port. There should be no sound at idle, meaning the air suction valve is closed. 2. If the noise is heard at the air suction port, disconnect the vacuum hose at the air suction valve and connect a vacuum gauge to the hose. There should be no vacuum. If there is vacuum and the noise stops, the problem is in the control system. If there is no vacuum and the bubbling sound is still there, the air suction valve is defective and must be replaced. 3. To test the valve, draw a vacuum at the air suction valve diaphragm and listen for a bubbling sound at the air suction port. If no sound is heard, the air suction valve or diaphragm is faulty. Throttle Control System

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1984 Mercedes Benz 190E Fuel Delivery and Air Induction Engine Testing And Adjustment Manual

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Filed Under (Mercedes-benz Manuals) by admin on 13-04-2012

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Note: Test and adjust lambda control with a lambda control tester. The lambda control and the idle speed emissions level must not be tested when the engine is very hot, e.g. immediately after driving sharply or after measuring engine output on the dynamometer. Testing, adjusting 1 Complete measurement sheet. 2 Switch off air conditioning or automatic climate control. Move selector lever into position “P”. 3 Read out DTC memory. Note: Not available on model year 1984-1986. 4 Connect testers: oil remote thermometer (018)124 589 07 21 00 lambda control tester (012) twin socket (031) trigger clamp (011) exhaust probe (005)126 589 11 63 00 CO measuring instrument (006) engine tester with oscilloscope (030) multimeter (003) test cable (033)102 589 04 63 00. 5 Position extraction device (014) at exhaust tail pipe. 6 Check engine coolant level, adjust to correct level. 7 Check engine oil level, pay attention to condition of oil (visual inspection). 8 Take off air cleaner. 9 Check ease of movement and condition of throttle control linkage and throttle valve. Grease all bearing points and ball sockets. 10 Check fulcrum lever, adjust. Check whether the roller (15) in the fulcrum lever (13) is resting free of tension against end stop. Adjust fulcrum lever (13) with the connecting rod (2), if necessary, so that the roller (15) is resting free of tension against end stop. 11 Idle stop. Check whether the throttle valve is resting against idle stop. Disconnect connecting rod (2) for this step. Adjust throttle control. Engines with cruise control only. Check whether the actuator is resting against idle stop of cruise control by pressing the lever of the actuator clockwise against idle stop at cruise control. When attaching the connecting rod (21), ensure that the lever of the actuator is lifted approx. 1 mm off the idle stop at the cruise control. Adjust tie rod, if necessary. Adjust throttle control. 12 Check wide open throttle stop from the accelerator pedal , adjust. 13 Voltages Test (battery and ignition coil ): No-load voltage Connect voltmeter to the battery, paying attention to the polarity, and take reading of voltage. Specification: 12.2 volts . Ignition coil Switch on ignition with engine not running. Test the voltage terminal 15 to ground at contact 5 of diagnostic connector. Specification: battery voltage Test difference in voltage between terminal 15 and terminal 1 at contacts 5 and 4 of diagnostic connector. Specification: 0 volts If the specified values are not reached, test

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2001 Dodge Durango BLOWER MOTOR RELAYS REPAIR MANUAL

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Filed Under (Dodge Manuals) by admin on 13-02-2012

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BLOWER MOTOR RESISTOR 1. Disconnect negative battery cable. Disconnect blower motor resistor harness connector. Using DVOM, check for continuity between all blower motor resistor terminals. If continuity exists between all terminals, go to next step. If continuity does not exist between all terminals, replace faulty blower motor resistor. 2. Check for open or short in circuits between blower motor resistor and heater control panel. Also check for open or short in wire between blower motor resistor and blower motor. BLOWER MOTOR SWITCH 2000 Dakota, 2000 Durango & 2000-01 Ram Pickup 1. Remove Power Distribution Center (PDC) cover. Using DVOM, check for battery voltage at PDC fuse No. 5 (40-amp) on Dakota and Durango; PDC fuse No. 12 (40-amp) on Ram Pickup. If battery voltage exists, go to next step. If battery voltage does not exist, check for open in Red wire between battery and underhood PDC. If Red wire is okay, replace underhood PDC. 2. Disconnect negative battery cable. Remove heater control panel. See HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Disconnect heater control panel cable, electrical and vacuum connectors as necessary. Using DVOM, check for continuity between heater control panel harness connector terminal No. 7 (Black wire on Dakota and Durango; Black/Orange on Ram Pickup) and ground. See Fig. 5 . If continuity exists, go to step 4 . 3. If continuity does not exist, repair open in Black wire or Black/Orange wire between heater control panel 2001 Dodge Durango 2000-01 HEATER SYSTEMS’ ‘RWD Trucks & Vans harness connector terminal No. 7 and ground connector located at lower right corner of instrument panel (Dakota and Durango) or behind center of instrument panel (Ram Pickup). 4. Place heater mode control knob to any position except OFF. Using DVOM, check for continuity between heater control panel terminal No. 7 and terminals No. 3, 4, 5 and 6 while rotating blower motor switch. See Fig. 5 . 5. If continuity does not exist at any terminal, replace faulty heater control panel. If continuity exists as specified, check for open in circuits between heater control panel and blower motor resistor. Also check for an open in circuit between heater control panel and blower motor. See WIRING DIAGRAMS . Fig. 5: Identifying Heater Control Panel Blower Switch Connector Terminals (2000 Dakota & Durango Are Shown; Ram Pickup Is Similar) Courtesy of CHRYSLER CORP. Ram Van/Wagon 1. Disconnect negative battery cable. Remove heater control panel. See HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Disconnect heater control panel harness connectors. Using DVOM, check for continuity between heater control panel C3 harness connector terminal “C” (Black wire) and ground. See Fig. 6 . If continuity exists, go to next step. If continuity does not exist, repair open in Black wire between heater control panel and ground connector located at lower right of steering column. 2. Place heater mode control selector to any position, except OFF. Using DVOM, check for continuity between appropriate terminals of heater control panel, for C3 connector terminals “B” (Violet wire) and “C” (Black wire). If continuity exists through heater control panel, go to next step. If continuity does not exist, replace faulty heater control panel assembly. 3. Using DVOM, check for continuity between heater control panel C3 connector terminal “B” (Violet wire) and C1 connector terminal “E” (Violet wire). See Fig. 6 . If continuity exists, go to next step. If continuity does not exist, repair open in Violet wire between heater control panel C3 and C1 connectors.

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2002 NISSAN ALTIMA MANUAL A/C TEMPERATURE NOT ADJUSTABLE REPAIR MANUAL

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Filed Under (Nissan Manuals) by admin on 11-05-2012

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SERVICE PROCEDURE 1. Remove the following components; • cluster lid “C” (HVAC control surround trim) • fuse box cover • driver’s side instrument panel lower cover (attached with 2 screws). 2. Remove the screw from the center of the cable operated gear (see Figure 2). Figure 2 3. Locate the small (about 1″ dia.) white air mix door gear. Hopefully it is still on the floor. NOTE: If you cannot find the old air mix door gear, order a new gear. Refer to the Parts Information section of this bulletin. 4. To see how it is supposed to fit, temporarily install the gear into the air mix door shaft (see Figure 3). Figure 3 Air mix door drive gear (shown installed) Heater box Cable operated gear Retaining screw (remove) Front TP020106 Cable (do not detach) On the left side of the heater case, remove the screw from the center of the cable operated gear for the air mix door. Note: It is not necessary to detach the cable from the gear or the heater box. Proper pin location for air mix door/door gear with door/gear turned fully clock wise. Front TP010607a The gear can fit two different ways, only one of which is correct. Install the gear and rotate the gear/mix door shaft assembly fully clockwise so the gear’s index pin is at the 2 to 3 o’clock position. Cable (do not detach) Note: If the gear is in the correct spot, the alignment pin will be at the 2 to 3 o’clock position. POSITIONING THE GEAR CORRECTLY IS CRITICAL TO GETTING THE DOOR TIMING RIGHT. 3/5 5. Remove the gear, thoroughly clean the gear shaft of any grease, and apply the glue. See Figure 4. Figure 4 6. Re-install the gear into the mix door shaft (see Figure 5). Figure 5 TP010606a Air mix door gear (back side) Apply Glue to Shaded areas b. Apply plastic glue (3M dp-8005 or equivalent) to the shaft of the air mix door gear in the area where it inserts into the air mix door shaft. a. Thoroughly clean the air mix door gear shaft. Note: It is not necessary to clean the grease from the gear teeth. Front TP020100 Re-install the gear so the gear’s index pin is at the 2 to 3 o’clock position when the gear/mix door shaft assembly is turned fully clockwise. Proper pin location for air mix door/door gear with door/gear turned fully clock wise. 4/5 7. Set the HVAC control temperature dial as shown in Figure 6. Figure 6 8. Re-install the cable operated gear (see Figure 7). Figure 7 9. Operate the temperature control while watching the air mix door gear movement. They should operate freely with no binding. 10.Check the adjustment of the temperature cable as follows: A. Rotate the temperature control knob to the full COLD position (i.e., fully counterclockwise) and confirm the air mix door is fully seated (sealed) in the down position, then B. Rotate the temperature control knob to the full HOT position (i.e., fully clockwise) and confirm the air mix door is fully seated (sealed) in the up position. If the air mix door does not fully seat (seal) in either the full HOT or full COLD position: • Adjust the temperature control cable, with the temperature control knob in the full hot position, using the clip at the heater unit (see Figure 7) 11.Re-install the trim pieces removed in step 1.

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2005 Ford Lincoln LS Climate Control System Manual

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Filed Under (Ford Manuals) by admin on 21-05-2011

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When PANEL is selected: z The Recirc request button is enabled. If the Recirc request button is selected (indicator ON), the air inlet door actuator positions the air inlet door to close off outside air from entering the passenger compartment. If the Recirc request button is not selected (indicator OFF), the air inlet door actuator positions the air inlet door to admit only outside air into the passenger compartment. z The panel door actuator positions the panel door in the OPEN position and the floor door and defrost door actuators position the floor door and defrost door in the CLOSED position, directing airflow to the instrument panel A/C registers. z The dual coolant control valve is automatically controlled by the DATC module based on the temperature setting(s). z The A/C request button is enabled. When the A/C request button is selected (indicator ON), the A/C compressor will operate if the outside air temperature is above approximately 2° C (35°F). When the A/C request button is not selected (indicator OFF), the A/C compressor will not operate and the air cannot be cooled below the outside temperature. z The blower motor is ON. PANEL/FLOOR When PANEL/FLOOR is selected: z The Recirc request button is enabled. If the Recirc request button is selected (indicator ON), the air inlet door actuator positions the air inlet door to close off outside air from entering the passenger compartment. If the Recirc request button is not selected (indicator OFF), the air inlet door actuator positions the air inlet door to admit only outside air into the passenger compartment. z The panel door and floor door actuators position the panel door and floor door in the OPEN position and the defrost door actuator positions the defrost door in the CLOSED position, directing airflow to the instrument panel A/C registers and the floor duct. z The dual coolant control valve is automatically controlled by the DATC module based on the temperature setting(s). z The A/C request button is enabled. When the A/C request button is selected (indicator ON), the A/C compressor will operate if the outside air temperature is above approximately 2° C (35°F). When the A/C request button is not selected (indicator OFF), the A/C compressor will not operate and the air cannot be cooled below the outside temperature. z The blower motor is ON. FLOOR

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2005-2006 Toyota Tundra/ Sequoia 4.7L V8 MR Tech Power-flow Intake system Installation Manual

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Filed Under (Toyota Manuals) by admin on 23-03-2012

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The installation of this cold air intake does require mechanical skills. Removal of engine covers, air lines and removing several plastic plugs and screws that may be difficult. It is recommended that this system be installed by a professional mechanic. Be sure to disconnect the negative terminal before proceeding. Congratulations! You have just purchased the worlds first tuned intake system. MR Technology, Leading the way! Patent pending (A) and (G) (B) (D) (A) Power-Box contents: POWER-FLOW: An air intake evolution Tools required: 1- 8mm socket 1- 10mm socket 1- 12mm socket 1- Phillips screw driver 1- 8mm nut driver 1- 55mm allen wrench 1- Disc grinder or Dremel (C) (E) Figure 1 Figure 2 Carefully, remove the mass air flow sensor from the air sensor housing to be reused later in the instruc- tions. Unhook three spring clamps from the top air box cleaner. Once the hooks have been removed, continue to detach the air box top from the lower air box cleaner. See fig. 15 for better illustration. Once the nut and bolt have been removed, continue to remove the entire hose clamp. Unplug the electrical harness clip from the mass air flow sensor as shown above. Disconnect the 4mm vacuum line located to the side of the air box cleaner. Unscrew the nut and bolt the hose clamp that secures the hose over the radiator. Loosen the two flange nuts on the engine cover in order to remove the cover. Disconnec the 6mm vacuum hose that will be reused later in the instructions. Page 2 of Part# PF2019 Unscrew the two screws from the mass air flow sensor, shown above. Loosen the hose clamp on the air duct connected to the throttle body. Unplug the crank case breather hose from the air crank case port as shown above. >>> >>>> Figure 3 Figure 8 Figure 7 Figure 6 Figure 11 Figure 10 Figure 9 Figure 14 Figure 13 Figure 12 >>>> Figure 4 Figure 5 Once the flange nuts have been removed, continue to remove the cover from the engine compartment as shown above. >>> >>> >>> >>> >>> >>> The three spring clamps shown above are unhooked from the top air box cleaner (A). Remove the air filter panel once the top has been removed (B). Once the air filter panel is removed, there are three bolts that will be removed in order to detach the lower air box cleaner. Remove the entire lower air box cleaner from the engine compartment. Place the power bands over each end of the silicone elbow. press the short end of the silicone elbow over the throttle body. Once the silicone elbow has been aligned continue to semi-tighten power band over the throttle body end. The first vibra-mount is aligned to the pre-tapped hole located behind the head lamp. The first vibra-mount is now installed as shown above. Screw the second vibra-mount is aligned over the wheel well bracket. The second vibra-mount is now installed as shown above. The stock 6mm hose is removed from the fuel pressure regulator. Press the new 16″- 4mm vacuum hose over the fuel pressure regulator port. Page 3 of Part# PF2019 Figure 15 Figure 17 Figure 16 Figure 20 Figure 19 Figure 18 Figure 23 Figure 26 Figure 25 Figure 22 Figure 21 Figure 24 (B) (A) (A) (A) >>> >>> >>> >>> Both vibra-mounts are now installed, you are now ready to go on to the next step. Place one .462 and a .412 power band over the silicone step hose. Press the 3 3/4″ side over the velocity stack as shown above. The Power box is now sitting flush over the vibra- mounts and a fender washer is placed over each vibra-mount. The last m6 flange nut is placed over the vibra- mount located behind the Power box. The 65mm bolt is tightened with an allen wrench. The assembled power box is lowered into the engine compartment. Align the mounting points on the bracket arms over the vibra-mounts. One 45mm bolt is removed from the top of the box. The bracket is place under the Power box and the 45mm bolt is aligned and screwed back in place as shown above. Remove the 65mm bolt from the velocity stack base. Align the bracket to the hole and insert the 65mm bolt back in place

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2002 BMW 325I 2.5L Air Pump Repair manual

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Filed Under (Bmw Manuals) by admin on 05-02-2012

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Check engine light on and fault codes stored. Vehicle running normally. Tests/Procedures: 1. Based upon stored fault codes for secondary air system, there is little or no flow of secondary air into engine. Typical causes for this issue are failed secondary air pumps and/or secondary air check valves. Secondary air pump should operate under normal circumstances when vehicle is first started to perform system test. Pump will normally be heard running when standing in front right corner of vehicle. 2. The secondary air pump is located in the right front of engine compartment. A secondary air pump relay located in the glove box is controlled by the engine control module and sends power to the secondary air pump. 3. Air pump can be disconnected and supplied with power and ground at pump to verify operation is possible. 4. Check valve on front right of cylinder head can be supplied with vacuum and visually checked for opening of valve. 5. Vacuum line from check valve to operating solenoid should also be inspected for cracks or being disconnected. Vacuum line follows right side of cylinder head to back of cylinder head to the secondary air solenoid located under left rear side of intake manifold. 6. The solenoid should allow vacuum flow to the check valve during vacuum pump operation. The solenoid is controlled directly by the engine control module and receives power during key-on-engine-off. Potential Causes: A.I.R. Check Valve Engine Control Module (ECM) Codes — Engine control module fault. Defective Secondary Air Pump Secondary Air Pump Relay Secondary Air Supply Hose Broken Vacuum Line

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2001 Hyundai Sonata Air Bag Restraint Systems Repair Manual

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Filed Under (Hyundai Manuals) by admin on 21-05-2011

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Scan Tool Display B1111 Battery voltage high B1112 Battery voltage low B1346 Driver-side air bag resistance high B1347 Driver-side air bag resistance low B1348 Driver-side air bag short to ground B1349 Driver-side air bag short to battery B1352 Passenger-side air bag resistance high B1353 Passenger-side air bag resistance low B1354 Passenger-side air bag short to ground B1355 Passenger-side air bag short to battery B1361 Driver-side seat belt pretensioner resistance high B1362 Driver-side seat belt pretensioner resistance low B1363 Driver-side seat belt pretensioner short to ground B1364 Driver-side seat belt pretensioner short to battery B1367 Passenger-side seat belt pretensioner resistance high B1368 Passenger-side seat belt pretensioner resistance low B1369 Passenger-side seat belt pretensioner short to ground B1370 Passenger-side seat belt pretensioner short to battery B1378 Driver side impact air bag resistance high B1379 Driver side impact air bag resistance low B1380 Driver side impact air bag short to ground B1381 Driver side impact air bag short to battery B1382 Passenger side impact air bag resistance high B1383 Passenger side impact air bag resistance low B1384 Passenger side impact air bag short to ground B1385 Passenger side impact air bag short to battery B1400 Satellite left side defective B1401 Satellite left side short to ground B1402 Satellite left side short to battery B1403 Satellite right side defective B1404 Satellite right side short to ground B1405 Satellite right side short to battery B1406 PPD defective B1407 PPD communication error B1408 Satellite left communication error B1409 Satellite right communication error B1620 Internal fault B1650 SRSCM crash recorded (replace SCRSM) B1651 Crash recorded driver-side air bag

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2003 BMW 525I 2.5L Check engine light on and fault codes stored Vehicle running normally

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Filed Under (Bmw Manuals) by admin on 01-05-2012

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1. Based upon stored fault codes for secondary air system, there is little or no flow of secondary air into engine. Typical causes for this issue are failed secondary air pumps and/or secondary air check valves. Secondary air pump should operate under normal circumstances when vehicle is first started to perform system test. Pump will normally be heard running when standing in front right corner of vehicle. 2. The secondary air pump is located in the right front of engine compartment. A secondary air pump relay located in the glove box is controlled by the engine control module and sends power to the secondary air pump. 3. Air pump can be disconnected and supplied with power and ground at pump to verify operation is possible. 4. Check valve on front right of cylinder head can be supplied with vacuum and visually checked for opening of valve. 5. Vacuum line from check valve to operating solenoid should also be inspected for cracks or being disconnected. Vacuum line follows right side of cylinder head to back of cylinder head to the secondary air solenoid located under left rear side of intake manifold. 6. The solenoid should allow vacuum flow to the check valve during vacuum pump operation. The solenoid is controlled directly by the engine control module and receives power during key-on-engine-off. Potential Causes: A.I.R. Check Valve Engine Control Module (ECM) Codes — Engine control module fault. Defective Secondary Air Pump Secondary Air Pump Relay Secondary Air Supply Hose Broken Vacuum Line Diagnostic Codes: P0491, P0492 Author: Robert Jacobs Average Reported Mileage: 69066

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