| 91 2.3L VIN A MFI | |
|---|---|
| 13 | Oxygen sensor voltage stays between 0.35 and 0.55 volts for 60 seconds at throttle angle above 6.5%. |
| 14 | Coolant temperature sensor signal indicates a temperature of over 275° F for 3 seconds after engine had been running for at least 10 seconds. |
| 15 | Coolant temperature sensor signal indicates a temperature colder than -22° F after engine had been running for 50 seconds. |
| 21 | TPS voltage was above 4.0 volts for 5 seconds when the MAP sensor signal showed manifold vacuum to be 15 pounds or more, or the TPS voltage was greater than 4.7 volts with throttle closed. |
| 22 | TPS voltage was under 0.2 volts for 5 seconds when the engine was running. |
| 23 | Inlet air temperature sensor signal showed an air temperature of -29° F after the engine has been running for 5 minutes and 20 seconds. |
| 24 | Vehicle was not in park or neutral for 20 seconds when throttle position signal was over 7% with engine speed between 1600 and 3600 RPM and the MAP signal showed low manifold vacuum. |
| 25 | Inlet Air Temperature Sensor signal showed an air temperature over 318° F with a vehicle speed greater than 15 MPH. |
| 26 | Quad-driver sense voltage shows a low voltage for 5 seconds when battery voltage should be present or if the sense voltage shows battery voltage for 20 seconds when a low voltage should be present. |
| 33 | MAP sensor signal voltage was too high (low vacuum) for 5 seconds when throttle opening was under 12%. |
| 34 | MAP sensor signal voltage was too low (high vacuum) for 0.2 seconds when engine speed was under 1200 RPM or when throttle opening was over 15.2%. |
| 35 | Idle speed was over 175 RPM outside the desired engine speed commanded by the ECM for at least 5 seconds. |
| 41 | ECM had received 8 2X reference pulses without receiving any 1X reference pulses. |
| 42 | The EST circuit had an open or a ground and the signal did not change when the ECM applied bypass voltage to the ignition module. |
| 43 | Knock sensor voltage was either below 1.25 volts or above 3.75 volts for 5 seconds, or the knock signal was present for 3.67 seconds or more during normal engine operation. |
| 44 | Oxygen sensor voltage was under 0.27 volts for 25 seconds of closed loop operation. |
| 53 | ECM sees a battery voltage of more than 17.1 volts for 0.2 seconds with ignition on. |
| 62 | Vehicle was in park or neutral at a speed less than 5 MPH when vehicle was in 2nd or 3rd gear, or vehicle speed was greater than 50 MPH when vehicle was in 1st or 2nd gear for 20 seconds. |
| 65 | Fuel injector driver current did not reach 4 amps. Injectors commanded "ON" longer than the calibrated pulse width and battery voltage was more than 9 volts for 10 seconds. |
| 66 | A/C refrigerant pressure voltage was either less than 0.1 volts, or more than 4.9 volts for 5 seconds. |