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Home >> Toyota >> 2004 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1045 (Powertrain Diagnostic Procedures) >> Diagnostic Procedures >> DRIVEABILITY - NGC - Diagnostic Tests >> P2096-Down Stream Fuel System 1/2 Lean, P2097-Down Stream Fuel System 1/2 Rich >> Possible Causes
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Possible Causes

WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
  1. GOOD TRIP EQUAL TO ZERO
  2. EXHAUST LEAK
  3. ENGINE MECHANICAL PROBLEM
  4. O2 SENSOR
  5. O2 SIGNAL CIRCUIT
  6. O2 RETURN CIRCUIT
  7. FUEL CONTAMINATION