High Fuel Consumption
- Check fuel system for leaks.
- Check HO2S control circuit.
- Check cold-start valve.
- Check injector fuel pressure and volume.
- Check MAF sensor.
- Check TP sensor.
- Check injector fuel pressure and volume.
- Check full throttle switch.
- Check intake air preheating system.
- Check exhaust system for leaks (between cylinder and HO2S).
- Check ignition timing.