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Old 07-10-2013, 10:57 PM   #21
Sodell
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Join Date: Mar 2013
Location: Fayetteville Arkansas
Posts: 830
Re: Possible ignition module problem

You may know this, but you need to unhook the battery or the ECM fuse for a while to reset the ECU after changing some parts. It sounds like it could be in limp mode. My 88, I have to unhook the battery and have it cool all the way down before I hook the battery back up. I usually leave it unhooked over night.

I would also check for codes as Mfmaster suggested.
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Scott

87 Chevy 2WD SWB, 88 4x4 LWB
http://67-72chevytrucks.com/vboard/s...d.php?t=610652
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