Quote:
Originally Posted by JEBSR5
That didn't work, removed top of air cleaner (AFM) reached in and moved vane, it was OK then tried to start and it did. Got home and pulled one code (51). Not sure, but I think I may still have a TPS problem. No AC was on.
It's run fine since adjustment and last post date above using RDHarpers method of adjustment on TPS. It's actually ran better than it ever has since I have owned it, til today. Still runs, just this incident and code.
Not sure where to proceed from here.
Oh yeah, the above connections were cleaned and lubed due to similar incident awhile back from a similar code about something didn't receive rpm trigger for a period of time. Don't remember code, but the symptoms above were the same each time.
Mr. Harper, thanks for the education on TPS. It's never ran better and I think it could be possibly bad TPS at this point, waiting to hear some input on this latest development.
As I said, it runs fine now, but this is the second time it has acted this way in maybe 2 months.
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51 could be the TPS although I never got that code. I think you have another unrelated problem. But while you are on it, don't forget you can simply disconnect the TPS. It will then throw a code, but if the TPS is the problem, the vehicle will start and run fine with the TPS connector disconnected.
I'm wondering about the AFM. I never had a problem with the one on my '94 3vze, but I did have problems with the one on my '85 22rec. They work identically, and they do "wear out", as their is a phenolic plate with a little arm on it that acts as the pickup to tell the ECM where the gate is. If that information is not right due to wear on the phenolic plate that is being "read", then you will get odd symptoms, sometimes making the vehicle undriveable until the AFM is replaced.
The AFM is an expensive part, so following the checks available in the FSM, probably in Chilton's and probably available somewhere in this forum, is worth doing. They are easy if you can use a DVM. Note that if it is starting to wear, the problem may not show up except in a slow sweep from closed to open. In that case you are looking for a "jump" in the reading indicating a discontinuity in the contact to phenolic plate.