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Home › Chrysler › 2004 › Crossfire Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls - Electrical Diagnostics › Diagnosis And Testing › DTC P0171: Fuel System 1/1 Rich Control Over Limit (At Load) › Diagnostic Test › 7. Engine Mechanical Problem

7. Engine Mechanical Problem

  1. Turn the ignition off.
  2. Check for any of the following conditions/mechanical problems.
  3. AIR INDUCTION SYSTEM - must be free from restrictions.
  4. ENGINE VACUUM - must be at least 13 inches in neutral.
  5. ENGINE VALVE TIMING - must be within specifications.
  6. ENGINE COMPRESSION - must be within specifications.
  7. ENGINE EXHAUST SYSTEM - must be free of any restrictions or leaks.
  8. TORQUE CONVERTER STALL SPEED - must be within specifications.
  9. POWER BRAKE BOOSTER - must not have any internal vacuum leaks.
  10. FUEL - must be free of contamination.
  11. FUEL INJECTOR - must not be plugged or restricted; harness connectors must be connected to the correct injectors.

Are there any engine mechanical problems? 

  1. Yes  >> Repair as necessary.

    See POWERTRAIN VERIFICATION TEST - VER 2  .

  2. No  >> Go To 11 
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