87 Rough Idle--Problem solved
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Joined: May 2011
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87 Rough Idle--Problem solved
Finally--working with my local Vette/hod-rod shop, we narrowed the problem down to a faulty ECM. Inital analysis was pointing to either the prom chip or the MAPS but ECM was the issue. Plug/played the new module and all is well. Also had them clean up the TB and check all the parameters on the ECM. Thanks to everyone who jumped in on this forum to help diagnose the problem--you advice and counsel are appreciated.
