1982 - moved TPS inline with Coolant temp sensor
Racer
Joined: Mar 2003
Posts: 448
Likes: 21
From: Klein Texas
You or your mechanic need to make sure the base ignition timing is correct.
You or your mechanic need to verify fuel pressure
You or your mechanic need to check for vacuum/egr leaks
You or your mechanic needs to verify that the idle air control motor is not sticking
You or your mechanic need to verify fuel pressure
You or your mechanic need to check for vacuum/egr leaks
You or your mechanic needs to verify that the idle air control motor is not sticking
Safety Car
Joined: Mar 2007
Posts: 3,652
Likes: 49
From: Bridgewater nj
Thanks Terry.
Apologies for the confusion. It does idle 700-800, when I stated idling above at 1000-1500, it was idling there because I had the pedal engaged running it that high. I do that for 40 seconds or so when starting after engine warm, and then take the foot off the pedal, then it won't stall. Overall when it idles it does so properly.
Apologies for the confusion. It does idle 700-800, when I stated idling above at 1000-1500, it was idling there because I had the pedal engaged running it that high. I do that for 40 seconds or so when starting after engine warm, and then take the foot off the pedal, then it won't stall. Overall when it idles it does so properly.
Thread Starter
Cruising
Joined: Dec 2014
Posts: 12
Likes: 0
It put out ecm codes 42 and 33 today, which seem to fit in to what is seen but also looks like could be the ECM. They are going to get someone else involved, unfortunately it's around the holidays so make take a bit to get resolved.
Racer
Joined: Mar 2003
Posts: 448
Likes: 21
From: Klein Texas
The biggest problem with those early ECM's is the connector. I've fixed dozens that nobody else could fix by disconnecting the ECM and using a small pick or T-pin on the harness side, gently spread the terminal so it fits tight on the board.
Code 33 is the MAP sensor. check for vacuum leaks
Code 33 is the MAP sensor. check for vacuum leaks
