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Air Quality Sensor At center front of engine compartment. Camshaft Position Sensor On rear of cylinder head. See Fig. 1 . Chassis Acceleration Sensor At right rear side of engine compartment. Crankshaft Position Sensor On left front side of transaxle. See Fig. 1 . Engine Coolant Temperature On top rear of engine, near thermostat. See Fig. 1 . Sensor Fuel Tank Unit On top of fuel tank, below rear seat cushion. Hot Film Airflow Sensor On end of air intake hose, at air cleaner housing. See Fig. 1 . Knock Sensor Near center rear of engine compartment, on intake manifold support bracket. O2 Sensor (Down) On front exhaust pipe, downstream of warm-up TWC converter. O2 Sensor (Up) On exhaust manifold, upstream of warm-up TWC converter. Speed Sensor On top of transaxle. Thermocon Behind glove box, on HVAC assembly. See Fig. 2 . Throttle Position Sensor On throttle body. See Fig. 1 . Turbine Sensor (A/T) On top rear of transaxle. Wheel Speed Sensor (Left Front) Attached to left front hub spindle. Wheel Speed Sensor (Left Rear) Attached to left rear hub spindle. Wheel Speed Sensor (Right Attached to right front hub spindle. Front) Wheel Speed Sensor (Right Rear) Attached to right rear hub spindle.

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1. Check the mass air flow sensor for damage and cracks. 2. Connect the New Generation Star tester to the data link connector. 3. Turn the ignition switch to ON. 4. Select the “PID/DATA MONITOR AND RECORD” function on the NGS tester display and press TRIGGER. 5. Select “MAF V” on the NGS tester display and press START. The NGS tester measures and show the voltage. 6. If not as specified, inspect the following. (1) Harness continuity Between PCM terminal 88 and mass air flow sensor terminal E Between PCM terminal 36 and mass air flow sensor terminal D Between PCM terminal 103 and mass air flow sensor terminal C Between main relay terminal E and mass air flow sensor terminal B (2) Terminal voltage Mass air flow sensor terminal B voltage: Battery positive voltage Mass air flow sensor terminal C voltage: Below 1.0 V 7. If the terminal voltage is correct and there is harness continuity, replace the mass air flow sensor.

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Installation Instructions Part Number 200-630 2008-09 Buick Enclave 2008-09 Chevrolet Equinox Sp. 2008-09 Chevrolet Malibu 2008-09 Chevrolet Traverse 2008-09 GMC Acadia 2008-09 Pontiac G6 GXP 2008-09 Pontiac G8 2008-09 Pontiac Torrent GXP 2008-09 Saturn Outlook 2008-09 Saturn Vue XR 2008-09 Suzuki LX7 3.6L V-6 2. Disconnect the breather hose elbow from the intake tube. Loosen the two hose clamps that secure the intake tube to the throttlebody, and the mass air flow sensor. Remove the air intake tube. 1. Disconnect the negative battery cable! Remove the oil fill cap and set it aside. Lift straight up on the engine beauty cover and set it aside. Reinstall the oil fill cap after the beauty cover has been re- moved to prevent any foreign material from entering the crank- case. 3. Remove the four bolts that secure the throttlebody to the in- take manifold. 5. Install the provided bolts and washers thru the throttlebody and Poweraid Spacer and tighten to the manufacturer’s specifi- cations. 4. Install the Poweraid Spacer between the throttlebody and the intake manifold with the first supplied gasket next to the intake manifold, and the second supplied gasket next to the throttle- body as shown. Make sure the “flow” arrow printed on the spacer is pointing towards the intake manifold. 6. Reinstall the intake tube, tighten the two hose clamps, and reconnect the crankcase breather tube. Reinstall the beauty cover, and oil cap in the reverse order that they were removed. Re-connect the negative battery cable!

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1. Disconnect battery ground cable (14301) . 2. Disconnect fuel charging wiring (9D930) from distributor stator (12A112) (camshaft position sensor). 3. Remove stator camshaft position sensor retaining screws and distributor stator (camshaft position sensor) from camshaft position sensor housing. 4. If removing camshaft position sensor housing from the engine front cover (6019) , proceed with Removal Step 5. If camshaft position sensor housing is not being removed, proceed to Installation Step 6. 5. CAUTION: Before proceeding with this procedure, set cylinder No. 1 to 26 degrees After Top Dead Center (ATDC) of the compression stroke. Then note the position of the stator (camshaft position sensor) electrical connector. The installation procedure requires that the connector be located in the same position. Remove retaining bolt and hold-down clamp (12270) . 6. NOTE: The oil pump intermediate shaft (6A618) should be removed with the camshaft position sensor housing. Remove camshaft position sensor housing from engine front cover . Installation 1. CAUTION: If the replacement distributor stator (camshaft position sensor) does not contain a plastic locator cover tool, a special service tool such as Syncro Positioning Tool T89P-12200-A must be obtained prior to installation of the replacement distributor stator (camshaft position sensor). Failure to follow this procedure will result in improper stator (camshaft position sensor) alignment. This will result in the fuel system being out of time with the engine, possibly causing engine damage. If the plastic locator cover tool is not attached to the replacement distributor stator (camshaft position sensor), attach Syncro Positioning Tool T89P-12200-A as follows: a. Engage camshaft position sensor housing vane into the radial slot of the tool. b. Rotate tool on camshaft position sensor housing until tool boss engages notch in camshaft position sensor housing. The cover tool should be square and in contact with entire top surface of camshaft position sensor housing. 2. Transfer oil pump intermediate shaft from old camshaft position sensor housing to replacement camshaft position sensor housing. 3. CAUTION: If stator (camshaft position sensor) electrical connector is not positioned properly (for example, contacting the A/C compressor bracket), DO NOT reposition the connector by rotating the camshaft position sensor housing. This will result in the fuel system being out of time with the engine, possibly causing engine damage. Remove the camshaft position sensor housing and repeat installation procedure, beginning with Step 1. Install camshaft position sensor housing so that drive gear engagement occurs when arrow on locator tool is pointed approximately 30 degrees counterclockwise from the front face of the cylinder block (6010) . This step will locate stator (camshaft position sensor) electrical connector in the pre-removal position. 4. Install hold-down clamp and retaining bolt and tighten bolt to 20-30 Nm (15-22 lb-ft). 5. Remove Syncro Positioning Tool T89P-12200-A. 6. CAUTION: If stator (camshaft position sensor) electrical connector is not positioned properly (for example, contacting the A/C compressor bracket), DO NOT reposition the connector by rotating the camshaft position sensor housing. This will result in the fuel system being out of time with the engine, possibly causing engine damage. Remove the camshaft position sensor housing and repeat installation procedure, beginning with Step 1. Install distributor stator (camshaft position sensor) and retaining screws. Tighten screws to 2.5-3.5 Nm (22-31 lb-in). 7. Connect fuel charging wiring connector to distributor stator (camshaft position sensor). 8. Connect battery ground cable .

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CAUTION: Prior to removal of the camshaft position sensor (CMP sensor) (12126) , set cylinder No.1 to zero degrees top dead center (TDC) of compression stroke. Then note the position of the camshaft position sensor electrical connector. The installation procedure requires the connector be located in the same position. Removal 1. Disconnect battery ground cable (14301). Refer to Section 14-01. 2. Disconnect fuel charging wiring connector from camshaft position sensor. 3. Remove camshaft position sensor retaining screws and camshaft position sensor from camshaft position sensor housing. 4. If removing camshaft position sensor housing from the cylinder block (6010), proceed with Removal Step 5. If not removing camshaft position sensor housing, proceed to Step 6 of the installation procedures. 5. Remove hold-down clamp (12270) (bolt and washer assembly). 6. NOTE: Remove the oil pump intermediate shaft (6A618) with the camshaft position sensor housing. Remove camshaft position sensor housing from cylinder block. Installation 1. CAUTION: If the replacement camshaft position sensor housing does not contain a plastic locator cover tool, a special service tool must be obtained prior to installation of the replacement camshaft position sensor. Failure to follow this procedure will result in improper camshaft position sensor alignment. This will result in the ignition fuel system being out of time with the engine, possibly causing engine damage. NOTE: For 3.0L engines, use Syncro Positioning Tool 303-589. For 3.8L engines, use Syncro Positioning Tool 303-562 (T96T-12200-A). If the plastic locator cover tool is not attached to the replacement camshaft position sensor housing, attach syncro positioning tool as follows: a. Engage camshaft position sensor housing vane into the radial slot of the tool. b. Rotate tool on camshaft position sensor housing until tool boss engages notch in camshaft position sensor housing. 2. Transfer oil pump intermediate shaft from old camshaft position sensor housing to replacement camshaft position sensor housing. 3. Install camshaft position sensor housing so drive gear engagement occurs when arrow on syncro positioning tool is pointed approximately as shown in the illustrations. This step will locate camshaft position sensor electrical connector in the pre-removal position. 4. Install hold-down clamp (washer and bolt assembly) and tighten bolt to 20-30 Nm (15-22 lb-ft). 5. Remove syncro positioning tool. 6. CAUTION: If camshaft position sensor electrical connector is not positioned properly, DO NOT reposition the connector by rotating the camshaft position sensor housing. This will result in the fuel system being out of time with the engine, possibly causing engine damage. Remove the camshaft position sensor housing and repeat installation procedure, beginning with Step 1. Install camshaft position sensor and retaining screws. On 3.0L engine, tighten screws to 2.5-3.5 Nm (23-30 lb-in). On 3.8L engine, tighten screws to 4.5-7 Nm (40-61 lb-in). 7. Connect fuel charging wiring connector to camshaft position sensor. 8. Connect battery ground cable. Refer to Section 14-01. Camshaft Position Sensor—3.0L Engine