Steady OD flash
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,738
Likes: 2,667
From: SE Florida
The P1000 code is a federally mandated code. It means that not all of the tests have run. It's purpose is to stop cheating at emission testing stations. If this code wasn't there and you had removed something that would set a code all you would need to do is clear the codes and get it tested before the PCM detected the fault. With the P1000 set the tester knows that any potential codes have been cleared and the test can't be passed until enough driving has occurred to clear the P1000.
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Elder User
Joined: Mar 2012
Posts: 534
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From: Quaker Hill
Ok, I'm waiting to hear back from the place that sold me the tranny. I don't want to start pulling things apart without them telling me too in case it voids my warranty. However, while driving it with AE hooked up, I was hitting about 180 degrees unloaded, on the highway, with OAT being between 70-75. It seems a little high from what I've read, but I've never had the capability of monitoring it before. What should I be seeing for a temp?
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Elder User
Joined: Mar 2012
Posts: 534
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From: Quaker Hill
Is there a possibility of a short inside the wiring harness (outside the trans) that could cause this code? I have had 2 other shorts with this truck, one was injector related, other was alternator related. The soonest the shop can get me in is next Tuesday, and I don't want to drive 3 hrs round trip if there is a way I can verify without ripping anything apart. This also a truck we need every day. Electrical isn't really my cup of tea, and if there's a possibility of frying my PCM, I'd rather not go that route. However, if there's a way around dropping the pan and potentially frying my PCM, I'm game...
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