GM 90-91 5.7L VIN 8 Trouble Code Info

GM

90-91 5.7L VIN 8
13 Oxygen 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 seconds after start with a throttle angle above 5%.
14 Coolant temperature sensor signal indicates a temperature of over 266° F for 3 seconds.
15 Coolant temperature sensor signal indicates a temperature colder than -38° F for 3 seconds.
21 TPS voltage was above 2.5 volts for 3 seconds when the MAP sensor signal showed manifold vacuum to be 15 pounds or more, or TPS was above 4.5 volts at any time.
22 TPS voltage was under 0.2 volts for 3 seconds when the engine was running.
23 Manifold air temperature sensor signal showed an air temperature below -22° F for 12 seconds after the engine has been running for 5 minutes.
24 Vehicle speed was 0 MPH when engine speed was between 900 and 3000 RPM and throttle position angle was less than 2% for at least 4 seconds.
25 Manifold air temperature sensor signal showed an air temperature over 302° F for 12 seconds after the engine has been running for 4 minutes and vehicle speed was above 5 MPH.
32 EGR open command did not change MAP sensor signal. Normal EGR flow should cause slight decrease in manifold vacuum which would change MAP sensor signal.
33 MAP sensor signal voltage was too high (low vacuum) for 1 second when throttle opening was under 2%.
34 MAP sensor signal voltage was too low (high vacuum) when engine speed was under 600 RPM or the engine speed was over 600 RPM with a throttle position angle above 6%.
41 Faulty or incorrect MEM-CAL.
42 The EST signal did not change when the ECM applied bypass voltage to the ignition module.
43 The ECM did not detect a knock signal during near wide open throttle operation, or the knock sensor voltage was above 3.62 volts or below 1.44 volts for 0.5 seconds.
44 Oxygen sensor voltage was under 0.2 volts for 50 seconds of closed loop operation.
45 Oxygen sensor voltage was over 0.7 volts for 30 seconds of closed loop operation with a throttle angle above 2%. The engine was running for at least 1 minute.
46 ECM did not receive the proper signal from vehicle anti-theft system when ignition was turned on.
51 MEM-CAL error.
52 Engine oil temperature was below -31° F after the engine had been running for 30 minutes.
53 ECM sees a battery voltage either above 17.1 volts or below 8.0 volts.
54 Fuel pump voltage was less than 2 volts for 1.5 seconds since the last reference pulse was received.
62 Engine oil temperature was above 284° F after engine had been running for 30 minutes.