GM OBD/OBD2 Codes >> GM 82-83 3.0L


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