Dell, can you tell me more about this? Never had anything with a computer before. Played around with an 89 F-150 so I know how the flashes work and all but is there like a webpage I can reference codes from?
*edit*
I harvested these codes from another board:
heres a GM code list:
13 Oxygen sensor voltage stays between 0.35 and 0.55 volts for 60 seconds.
14 Coolant temperature sensor signal indicates a temperature of over 275° F for 2 seconds.
15 Coolant temperature sensor signal indicates a temperature colder than -27° F for 30 seconds after the engine has been running for at least 30 seconds.
21 TPS voltage was above 2.5 volts for 8 seconds when the MAP sensor signal showed manifold vacuum to be 15 pounds or more.
22 TPS voltage was under 0.2 volts for 2 seconds when the engine was running.
23 Inlet air temperature sensor signal showed an air temperature below -22° F after the engine has been running for 5 minutes.
24 Vehicle Speed Sensor (VSS) Circuit .
25 Inlet air temperature sensor signal showed an air temperature over 302° F after the engine has been running for 5 minutes.
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 5 seconds when throttle opening was under 4%.
34 MAP sensor signal voltage was too low (high vacuum) when engine speed was under 1200 RPM or the engine speed was over 1200 RPM with a throttle position angle above 21%.
35 Idle Air Control (IAC) System .
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 with coolant temperature above 194° F or the knock signal was present for 5 seconds or more during normal engine operation.
Electronic Spark Control (ESC) Circuit .
44 Oxygen sensor voltage was under 0.2 volts for 50 seconds of closed loop operation.
(Lean Exhaust Indicated)
45 Oxygen sensor voltage was over 0.7 volts for 30 seconds of closed loop operation with a throttle angle between 2% and 20%.(Rich Exhaust Indicated)
51 PROM error. (MEM-CAL)
52 CALPAK error.Fuel CALPAK Missing .
53 System Over Voltage .
54 Fuel pump voltage was not present at fuel pump sense line for 2 seconds after the ECM has sent the fuel pump on command.(Low Voltage)
55 ECM error. Replace ECM.Faulty ECM
this is not a giant code to worry about. faulty EGR, EGR port
restriction. basically in a nutshell, the computer commanded the EGR
to open and the test failed as the MAP and/or O2 didnt sense any
change when the command to open EGR was given.
airdeano
87 Silverado 4x4 Longbed Pickup
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Edited by: Kevin108 at: 6/17/02 5:30:41 pm