| 90 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%. |
| 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. |
