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P0175

DTC P0175: Front Bank (Bank 2) Fuel System Too Rich

NOTE: If some of the DTCs listed are stored at the same time as DTC P0171, P0172, P0174, and/or P0175, troubleshoot those DTCs first, then recheck for P0171, P0172, P0174, and/or P0175.

P0107, P0108, P1128, P1129: Manifold absolute pressure (MAP) sensor

P0133, P0153, P1172, P1173, P2195, P2197, P2237, P2238, P2240, P2241, P2243, P2245, P2247, P2249, P2251, P2252, P2254, P2255, P2627, P2628, P2630, P2631, P2AOO, P2A03: Air fuel ratio (A/F) sensor(Sensor 1)

P0134, P0135, P0154, P0155: Air fuel ratio (A/F) sensor(Sensor 1) heater

P0137, P0138, P0139, P0157, P0158, P0159, P2270, P2271, P2272, P2273: Secondary HO2S (Sensor 2) P0141, P0161: Secondary HO2S (Sensor 2) heater P0522, P0523, P2646, P2647, P2648, P2649: Variable Cylinder Management (VCM) system

P0401, P0404, P0406, P2413: Exhaust gas recirculation (EGR) system

P2279: Intake air leakage

1. Check the fuel pressure.

Is the fuel pressure OK?

YES - Check the valve clearances and adjust if necessary (DTC P0172 and P0175 only). If the valve clearances are OK, replace the injectors, then go to step 2.

NO - Check these items:
- If the pressure is too high, replace the fuel pressure regulator, then go to step 2. If the pressure is too low, check the fuel pump, the fuel feed pipe, and the fuel filter. If they are all OK, replace the fuel pressure regulator, then go to step 2.

2. Turn the ignition switch ON (II).
3. Reset the PCM with the HDS.
4. Do the PCM idle learn procedure. Programming and Relearning
5. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.
6. Test-drive under these conditions:
- Engine coolant temperature above 158 °F (70 °C)
- Transmission in D position
- Drive at a steady speed between 25 - 55 mph (40 - 88 km/h) for 5 minutes, then drive at a steady speed between 15 - 75 mph (24 - 120 km/h) for 15 minutes.

NOTE: DTC P0171, P0172, P0174, and/or P0175 may take up to 40 minutes of test driving to set. Use the HDS to monitor the LT FUEL TRIM for 15 minutes of driving. If the value stays within 10 % of 1.0 (0.0%), there is no problem at this time.

7. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P0171, P0172, P0174, or P0175 is indicated, go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - Troubleshooting is complete.