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− − − S6M6AALK72100090171FAAT00 − − − − DTC P0171: DTC P0172: YES NO YES NO 11-162 PGM-FI System DTC Troubleshooting (cont’d) Fuel System Too Lean (2005-2006 models) Fuel System Too Rich (2005-2006 models) NOTE: If some of the DTCs listed below are stored at P0107, P0108, P1128, P1129: Manifold absolute 1. Check the fuel pressure (see page 11-363). Check the engine valve clearances and adjust if necessary. If the valve clearances are OK, replace Check the fuel pressure (see page 11-363). • If the pressure is too high, replace the fuel pressure regulator (see page 11-373), then go to • If the pressure is too low, check the fuel pump and the fuel feed line, then go to step 2. 2. Turn the ignition switch ON (II). 3. Reset the ECM/PCM with the HDS. 4. Do the ECM/PCM idle learn procedure (see page 11-349). 5. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the 6. Test-drive under these conditions: • Engine coolant temperature above 158 °F (70 °C) 75 mph (24 120 km/h) NOTE: DTC P0171, P0172, P0174, and/or P0175 may 1.17, there is no problem at this time. 7. Check for Temporary DTCs or DTCs with the HDS. If DTC P0171 or P0172 is indicated, go to step 1. If any other Temporary DTCs or DTCs are Troubleshooting is complete. Is the f uel pr essur e OK ? Ar e any T empor ar y DT Cs or DT Cs indicated? 05/06/27 17:35:03 61S6M040_110_0162 |