GM OBD/OBD2 Codes >> GM 90 5.7L VIN J

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90 5.7L VIN J
13Oxygen sensor voltage stays between 0.35 and 0.55 volts for 60 seconds. Engine was at normal operating temperature and had been running for at least 2 minutes after start with a throttle angle above 5%.
14Coolant temperature sensor signal indicates a temperature of over 266° F.
15Coolant temperature sensor signal indicates a temperature colder than -26° F.
16DIS fault line voltage was low for 2 seconds when EST was disabled.
21TPS voltage was above 2.5 volts for 2 seconds when the engine was running, or when the TPS was above 4.92 volts at any time.
22TPS voltage was under 0.24 volts when the engine was running.
23Manifold air temperature sensor signal showed an air temperature below -22° F for 1 second after the engine has been running for 2 minutes.
24Vehicle speed was 0 MPH when engine speed was between 900 and 4400 RPM and throttle position angle was less than 2% for 4 seconds.
25Manifold air temperature sensor signal showed an air temperature over 302° F for 3 seconds after the engine has been running for 2 minutes.
31Cam pulse was missing on the first pass through the internal ECM self test of the cam sensor, or for any 3-minute period.
33MAP sensor signal voltage was too high (low vacuum) for 0.5 seconds when throttle opening was under 3%.
34MAP sensor signal voltage was too low (high vacuum) when engine speed was under 700 RPM, or when TPS was greater than 20% with an engine speed above 700 RPM.
36The DIS module did not sense the correct EST signal from ECM for 10 consecutive attempts.
42The EST signal was not received by ECM for 0.5 seconds when EST mode was enabled or when bypass mode was enabled.
43One or both of the knock sensors were either open or grounded for 5 seconds.
44Left oxygen sensor voltage was under 0.2 volts for 50 seconds of closed loop operation.
45Left oxygen sensor voltage was over 0.75 volts for 30 seconds when the throttle angle was above 4% during closed loop operation.
46ECM did not receive the proper signal from vehicle anti-theft system when ignition was turned on.
52Engine oil temperature was below -36° F after engine had been running for 30 minutes.
53ECM detected a battery voltage either above 17.1 volts or below 8 volts.
54Fuel pump voltage was less than 2 volts for 1.5 seconds since the last reference pulse was received.
55ECM detected a lean oxygen sensor voltage for 2 seconds during the power enrichment modes of operation.
56Vacuum sensor voltage was either above 5 volts or below 0.46 volts.
61Vacuum sensor voltage was between 0.76 and 4.89 volts when secondary port throttle valves were commanded closed, or the vacuum sensor voltage was below 1.7 volts when the secondary port throttle valves were commanded open.
62Engine oil temperature sensor showed oil temperature above 284° F after the engine had been running at least 30 minutes.
63Right oxygen sensor was open showing a steady voltage between 0.35 and 0.55 volts for 60 seconds after the engine had been running for at least 2 minutes.
64Right oxygen sensor voltage was below 0.2 volts for 50 seconds of closed loop operation.
65Right oxygen sensor voltage was above 0.75 volts for 30 seconds of closed loop operation when the throttle angle was above 20% or below 2.7%.
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