Cadillac Repair: 94 concours, pcm data, vacuum line


Question
these codes came up on a diagnostic, what do they mean?
P026 HISTORY
PO32 CURRENT
PO34 CURRENT
PO71 HISTORY
P095 HISTORY
SO61 HISTORY

Answer
P026 = shorted throttle position switch signal.

P032 = Open manifold absolute presure sensor (MAP) signal.

P034 = manifold absolute presure sensor (MAP) signal to high.

P071 = Intermittent manifold absolute presure sensor (MAP) signal.

P095 = Torque converter overstress.

S061 = Right front position sensor fault in the RIDE SUSPENSION SYSTEM.


What you need to do is CLEAR all the codes from the computer and see which ones come back.

1. re-enter diagnostics and when the screen displays all the codes it will stop at PCM?

2. Push and release the HI(^) button and you will see PCM DATA.

3. Keep pushing and releasing the LO(v) button until you see PCM CLEAR CODES.

4. Push and release the HI(^) button and you will see PCM CODES CLEAR.

5. Wait 3 seconds and turn OFF the ignition key.

6. Wait 3 minutes and re-enter diagnostics again and see if codes P032 and P034 reappear. If they DO, Replace the MAP sensor and make sure that the vacuum line has vacuum to it and install the new MAP sensor.

7. After you replace the MAP sensor and verify that the vacuum line is attached to it and the electrical connector is attached to it, Redo the steps above to CLEAR the P0 codes.