98 A4 PCM question - Shit Mode
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98 A4 PCM question - **** Mode Hi
If i drive a long distance at low rpm (say in OD on a highway cruse) my PCM seems to go into **** mode.
After such a drive, when booting it, it is low in power and misses. Seems to be extreamly lean (no engine/warrning codes). It takes about 3 or 4 WOT runs to get it back to normal. With 273 gears it seems I have to drive arounbd in 2nd to keep the revs up, or it will lean out on me. This is a real fustration. If I drive it harder it runs great.
Is this normal or do I need a new computer or o2 sensors or somthing? I heard the 98 PCM had problems. Is this one of them?
Thanks JA
If i drive a long distance at low rpm (say in OD on a highway cruse) my PCM seems to go into **** mode.
After such a drive, when booting it, it is low in power and misses. Seems to be extreamly lean (no engine/warrning codes). It takes about 3 or 4 WOT runs to get it back to normal. With 273 gears it seems I have to drive arounbd in 2nd to keep the revs up, or it will lean out on me. This is a real fustration. If I drive it harder it runs great.
Is this normal or do I need a new computer or o2 sensors or somthing? I heard the 98 PCM had problems. Is this one of them?
Thanks JA
Thread Starter
TECH Enthusiast
Joined: Feb 2005
Posts: 563
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Originally Posted by Moparnos (The SLP Guy)
we have **** mode??
Yes it's that mode somewhere between your LS1 running poorly but not poorly enough for anyone to figure out what's wrong.
I am going to replace my fuel filter and front O2s. After that if I am still having problems, I will have to find a scanner.
JA
