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Old 01-14-2004, 11:03 AM #1
hargee hargee is offline
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error code 25 - a puzzle
I got the engine check light. When I check the code I get
// ///// (error code 25). The O2 sensor has less than 10k miles on it, the ECM works fine. I have had a problem with the engine acting like it is missing, but that has cleared up on its own, now I get the engine check light. The cold start injector is fine, the problems occur after the engine has warmed up.
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Old 01-22-2004, 12:25 PM #2
hargee hargee is offline
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still error code 25
Well now the check engine light is intermittent and so is my idling. When the truck idles it oscillates to lower and lower rpm until the engine quits.

I'm replacing the pcv valve... maybe that will fix the idling problem.

One interesting note is the exhaust has a really strong sulfurous smell to it since the engine check light has been intermittent.
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Old 01-26-2004, 11:48 AM #3
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PCV fixed the problem
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