Possible Causes
- Good Trip Equal To Zero
- Restricted Fuel Supply Line
- Fuel Pump Inlet Strainer Plugged
- Fuel Pump Module
- O2 Sensor
- O2 Signal Circuit
- O2 Return Circuit
- O2 Sensor Heater Operation
- Throttle Position Sensor Voltage Greater Then 0.92 Volt With Throttle Closed
- Throttle Position Sensor Sweep
- MAP Sensor Operation
- ECT Sensor Operation
- Engine Mechanical Problem
- Fuel Contamination/Exhaust Leak