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Removal of Factory Intake 1. 2. Turn the ignition OFF and disconnect the vehicle’s negative battery cable. Loosen and remove the two bolts that secure the air inlet duct to the radiator core support, then remove the air inlet duct. Loosen the clamps at the air cleaner assembly and turbo inlet tube, then remove the stock intake tube. Loosen and remove the two bolts that secure the air cleaner assembly. Pull upwards to remove the air cleaner assembly. Using the bolt removed to secure the ABS control bracket. Loosen and remove the two screws that secure the mass air sensor to the air cleaner assembly, then remove the mass air sensor. Raise the vehicle and support with the jack stands, then remove the front passenger side tire. Remove the five plastic push/screw clips that secure the inner wheel house valance. Remove the 6 screw in push clips that secure the air duct to the lower valance, then remove the air duct. Remove the two remaining push clips that secure the lower valance, then pull the valance down. From inside the apron, remove the push clip that secures the apron to the upper fender. Remove the hex nut that secures the air intake resonator to the inner fender. Loosen and remove the second hex nut that secures the air intake resonator from underneath the vehicle. Remove the air intake resonator. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Install of Intake 16. Install the reducer and clamps onto the turbo and secure. 17. Loosen and remove the hex bolt on the cam cover. 18. Using the provided allen bolts, secure the mass air sensor into the adapter on the intake tube. 19. Using the allen bolts, secure the mass air sensor into the adapter on the intake tube. 20. Slide the intake tube into the reducer and secure the mass air sensor into the adapter on the intake tube. 21. Tighten the clamp on the intake tube. 22. Install the reducer and clamps onto the intake tube. 23. From underneath the vehicle loosen and remove the hex nut that secures the ABS pump to the inner fender. 24. Slide the cold air tube intake tube from underneath the vehicle into the hole in the inner fender, then line up the bracket with the ABS bolts, and tighten with the nut remove. 25. Slide the reducer onto the cold air intake tube. 26. Install the Bomz Filtercharger onto the cold air intake tube and secure with clamp. 27. Reverse the removal process for the plastic wheelhouse valance and air duct with the stock push clips. 28. Reconnect the mass air sensor electrical connection. 29. Reconnect the negative battery cable and double check to make sure everything is tight before starting the vehicle. Resetting the ECU This is to be completed at your own risk. This procedure will reset the computer so that it may “learn” of your new intake. We are not to be held liable for any mishaps that you may occur while completing this process. • • Disconnect the Negative battery cable for 5 minutes. Reconnect the battery cable and false panel cover.

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Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly) 1995-99 Buick Riviera 1997-2001 Buick Park Avenue, Ultra 2000-2001 Buick LeSabre 2000-2001 Pontiac Bonneville steering vibration, shudder or moan noise when steering during parking maneuvers on dry pavement. Correction Install a new power steering pressure (inlet) hose assembly on the following vehicles: • 1995-98 Buick Riviera • 1997-98 Buick Park Avenue and Ultra Install a new power steering pressure (inlet) and return (outlet) hose assembly on the following vehicles: • 1999 Buick Riviera • 1999-2001 Buick Park Avenue and Ultra • 2000-2001 Buick LeSabre • 2000-2001 Pontiac Bonneville 1. Verify that the power steering pump reservoir is full. • If fluid level is low, fill and check for leaks. • If power steering system has air in the system, perform the “Bleeding Air from Power Steering System” procedure as described in the Power Steering System sub-section of the Service Manual. Important: When performing the “Bleeding Air from Power Steering System” procedure, it is important that the front of the vehicle is supported by the lower control arms. If the vehicle is not supported by the lower control arms, the procedure may cause the strut bushing to dislocate and cause new concern. Verify that the accessory drive belt is in good condition and that the pulleys are not bent or damaged. Verify proper belt tension and operation of the belt tensioner. Check for power steering hose ground out conditions. Check for good engine idle and correct engine RPM. Check to see that the rear transaxle mount does not have a plastic assembly aid installed which is used 2. 3. 4. 5. 6.

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1. Remove the air cleaner assembly. 2. Disconnect the engine wiring harness electrical connector from the secondary air injection (AIR) pump electrical connector. 3. Squeeze the tangs together on the AIR pump inlet hose clamp at the pump until they lock, and reposition the clamp. 4. Remove the AIR pump inlet hose from the AIR pump. 5. Squeeze the tangs together on the AIR pump outlet hose clamp (3) at the pump until they lock, and reposition the clamp. 6. Raise and suitably support the vehicle. Refer to Vehicle Lifting. 5. Squeeze the tangs together on the AIR pump outlet hose clamp (3) at the pump until they lock, and reposition the clamp. 6. Raise and suitably support the vehicle. Refer to Vehicle Lifting. 1. Install the AIR pump. 2. Raise and suitably support the vehicle. Notice: Refer to Fastener Notice in Service Precautions. 3. Install the AIR pump nuts (2). Tighten the nuts to 9 N.m (80 lb in). 4. Install the AIR pump electrical connector clip (1) to the bracket. 5. Lower the vehicle. Install the AIR pump outlet hose to the AIR pump. 7. Position and release the AIR pump outlet hose clamp. 8. Install the AIR pump inlet hose to the AIR pump. 9. Position and release the AIR pump inlet hose clamp. Connect the engine wiring harness electrical connector to the AIR pump electrical connector. 11. Install the air cleaner assembly.

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Removal of Factory Intake 1. 2. Pull upwards to remove the engine cover. Unclip the battery cover and remove, then disconnect the negative battery cable. Disengage the plastic rivet. Slide the battery cold air vent backwards and remove from the engine compartment. Disconnect the mass air sensor electrical connection. Depress the retaining clip and disconnect the rank case vent hose from the stock intake tube. Remove the switch/sensor from the air cleaner cover. Loosen the clamp at the throttle body. Unclip the coolant hose from the air cleaner cover. Unclip the air cleaner cover and remove the complete upper air cleaner assembly. Remove the rubber retainer from the core support. Remove the lower air cleaner assembly. Unclip the wire harness from the side of the battery box. Remove the mass air sensor from the air cleaner cover. Remove the plastic clip from the crank case vent on the stock intake tube. Slide the clamps off rubber rank case vent. Remove the plastic vent from the stock intake tube. Slide the plastic clip from before back onto the crank case vent. Raise the vehicle up and support by jack stands, then remove the left front tire. Remove the four bolts and one plastic rivet from the inner valance, then remove the valance. Remove the three plastic rivets and six hex bolts on the inner valance, then pull the inner valance downward. Remove the three bolts that secure the air intake resonator to the inner fender, then remove the resonator. Secure the rubber mounted stud to the hole on the battery tray. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. Install of Intake 24. Install reducer and clamps onto the throttle body. 25. Install the hose onto the vent on the intake tube. 26. Install the mass air sensor into the intake tube. 27. Slide the tube into the reducer and line up the bracket with stud, then tighten the clamps at the throttle body. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. Secure the switch to the bracket (not for the 06 Mazda 5 model). Install the crank case vent into the hose on the intake tube. Reconnect the crank case vent. Install the rubber mounting stud into the resonator threaded hole. Install the reducer and clamps onto the cold air tube. From underneath the vehicle install the cold air tube. Slide the cold air tube onto the short ram tube. Secure the bracket to the tuber mounted stud. Install the filter onto the cold air tube from the underneath vehicle. Reconnect the mass air sensor. Reverse the removal process and reinstall the inner fender valance. Reinstall the front tire and torque to factory specs. Slide the vent into the core support and line up the other end with the battery box and secure with plastic rivet. 41. Reconnect the negative battery cable, then reinstall the battery cover. 42. Reinstall the engine cover. Resetting the ECU This is to be completed at your own risk. This procedure will reset the computer so that it may “learn” of your new intake. We are not to be held liable for any mishaps that you may occur while completing this process. • • Disconnect the Negative battery cable for 5 minutes. Reconnect the battery cable and false panel cover.

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Refer to Engine Controls Schematics MAF, Secondary Air Injection Pump Bypass Solenoid, IAC and Secondary AIR Pump . Circuit Description The AIR pump is used on this vehicle to lower tail pipe emissions on start-up. The powertrain control module (PCM) grounds the AIR pump relay control circuit, which energizes the AIR pump. The PCM also grounds the AIR solenoid valve control circuit, which energizes the AIR solenoid valve. The AIR solenoid valve opens allowing manifold vacuum to open the AIR control valves. The PCM enables both control circuits when AIR system operation is desired. When the AIR system is active, the AIR pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR control valves replace the conventional check valves. When the AIR system is inactive, the AIR control valves prevent air flow in either direction. DTC P0412 applies to the AIR solenoid control circuit. DTC P0418 applies to the AIR pump relay control circuit. DTC P0410 sets if an air flow problem is detected. The PCM will run two tests using the heated oxygen sensor (HO2S) voltage to diagnose the AIR system. Both tests have two parts. The passive test is performed during regular AIR pump operation. The passive test consists of the following: Passive Test Part 1 When the AIR system is enabled, the PCM monitors the HO2S voltage. If the HO2S voltage goes below a threshold, the PCM interprets this as an indication that the AIR system is operational. Passive Test Part 2 When the AIR system is disabled, the PCM monitors the HO2S voltage. The HO2S voltage should increase above a threshold and switch normally. If both of these tests indicate a pass, no further action is taken. If one of the above tests failed or is inconclusive, the diagnostic will proceed to test two. The active test is performed specifically for diagnostic purposes. Test two consists of the following: Active Test Part 1 During this test the PCM turns the AIR system on during closed loop operation. When the AIR system is activated, the PCM monitors the HO2S voltage. If the AIR system is operating properly, the HO2S voltage should go below a predetermined threshold. Active Test Part 2 The PCM turns the AIR system off. The HO2S voltage should return to above a rich threshold.