| 86 2.8L VIN X Carb |
| 12 |
ECM did not receive distributor reference pulses when cam pulses were
being received. |
| 13 |
Oxygen sensor voltage stays between 0.35 and 0.55 volts for 60 seconds
during closed loop operation after the engine had been running for 4
minutes and the throttle angle was above 4%. |
| 14 |
Coolant temperature sensor was shorted showing a high temperature
after engine had been running for 2 minutes. |
| 15 |
Coolant temperature sensor was open showing a low temperature after
engine had been running for 5 minutes. |
| 21 |
TPS was open showing low voltage. |
| 22 |
TPS voltage was under 0.2 volts for 3 seconds when the engine was
running. |
| 23 |
Mixture control solenoid circuit was either open or shorted. |
| 24 |
Vehicle speed sensor was out of range after vehicle had been at road
speed for 2 minutes. |
| 32 |
Barometric pressure sensor circuit was low. |
| 34 |
MAP sensor or vacuum sensor was open or shorted. |
| 35 |
Idle speed control switch circuit was shorted showing a high TPS reading
for over 5 seconds. |
| 41 |
ECM did not see any distributor reference pulses. |
| 42 |
The EST signal did not change when the ECM applied bypass voltage
to the ignition module. |
| 43 |
The ESC knock signal lasted too long causing the EST signal to be
retarded. |
| 44 |
Oxygen sensor was lean during closed loop operation after engine had
been running for 2 minutes. |
| 45 |
Oxygen sensor was rich during closed loop operation after engine had
been running for 2 minutes. |
| 51 |
PROM error. |
| 53 |
EGR valve vacuum was incorrect. |
| 54 |
Mixture control solenoid circuit was shorted and/or ECM is faulty. |
