CEL Code Help
#1
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CEL Code Help
I'm new to this site and need some help with my CEL codes. My pickup is giving me trouble codes 25, and 52. I have a 1991 pickup with a 22 RE with 388,000 plus miles on it. This is its second engine and it only has 50,000 on it. It has been running a little rough, sporadically missing. It has new plugs, wires, cap, rotor, fuel filter and air filter.
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So the two are probably related to different problems. Could the knock sensor likely be a loose wire? What would cause a lean fuel mixture to occasionally run bad? Oxygen sensor?
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well, both the knock sensor and 02 sensor (which is giving the reading for the 25) pass through the same wiring harness....
are the two related... could be, but not really likely.
since you found the knock sensor wasn't plugged in, I'd suggest disconnecting the battery a few minutes then reconnecting it (to clear the ECU) and start driving again.
If the CEL and codes come back, come back here, then we'll start looking at what's happening then.
... and please come back anyways to let us know if things are fixed.
are the two related... could be, but not really likely.
since you found the knock sensor wasn't plugged in, I'd suggest disconnecting the battery a few minutes then reconnecting it (to clear the ECU) and start driving again.
If the CEL and codes come back, come back here, then we'll start looking at what's happening then.
... and please come back anyways to let us know if things are fixed.
Last edited by abecedarian; 11-20-2008 at 03:56 PM.
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#11
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Show....? Show what? I've posted some pics. You all have seen all yer gonna see........unless Abe starts posting his pics. I caught him peering through my window this past week. Heard the dog trying to hump something. He jus'th get'sth s'tho exc'thited......
(I think Abe's got a new friend)
(I think Abe's got a new friend)
#12
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Okay................here's the linky poo:
http://personal.utulsa.edu/~nathan-b...e/102engin.pdf
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Decided to take it out for a drive. I got the same 2 codes, since I haven't done anything to the knock sensor yet. I'm hoping I can get it running better before heading home for thanksgiving.
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Seemed to have found the problem with the o2 sensor wire in that harness. Thanks for the help. Over my short test drive, it seems to run better. I'll know for sure in a day or day. Now I just have to get enough ambition to hook the knock sensor back up.
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