GM / General Motors: 94 Buick LeSabre EGR Problem

Probably a pcm....Bobo
"Ron Troolin" <com> wrote in message
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What's a pcm?

"Bobo" <com> wrote in message
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Did you clean the carbon out of the ports?


"Ron Troolin" <com> wrote in message
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Could be something like a bad EGR pintle position sensor (part of the
valve). Is the actual value staying pretty close to the desired when it's
running OK?

--
Robert Hancock Saskatoon, SK, Canada
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Home Page: http://www.roberthancock.com/


"Ron Troolin" <com> wrote in message
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Hi,

Thanks for the suggestions guys!
I hope it's not the PCM but not hard to replace if it is. I didn't see any
carbon in the ports so that isn't the problem.
Robert, the actual value stays close to desired until the engine starts to
run rough then it swings wildly. I replaced the EGR with a new GM valve and
it did the same thing. Again, the engine runs really good with the EGR valve
unplugged.

Thanks.

Ron

"Ron Troolin" <com> wrote in message
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