GM 82-83 3.0L


82-83 3.0L
13 Oxygen sensor circuit
14 Coolant temperature sensor voltage low
15 Coolant temperature sensor voltage high
21 TPS voltage was above 2.5 volts for 10 seconds when the MAP sensor signal showed manifold vacuum to be 15 pounds or more with an engine speed less than 1300 RPM.
23 Open or grounded M/C (mixture control) solenoid circuit.
24 Vehicle Speed sensor circuit
32 BARO sensor voltage too low
33 MAP sensor signal voltage was too high (low vacuum) for 5 seconds when throttle opening was under 2%.
35 Shorted ISC Motor Throttle Switch
41 No distributer referance signal
42 The EST signal did not change when the ECM applied bypass voltage to the ignition module.
43 Voltage at ECM terminal "L" low.
44 Oxygen sensor circuit.
45 Oxygen sensor rich exhaust indication.
51 PROM not reading.
54 Constant High Voltage From M/C Solenoid To ECM.
55 ECM problem