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International Automotive Technicians Network
Re: 2.5 TBI mystery
Posted to Technical Discussion Forum on 1/10/2019

Me too, I was an Olds & GMC master tech from about 1993-2000 those 2.5's were ECM eaters & generally cantankerous about certain stuff. Getting ready to post a big update about what I found.

I gave up on the cold idle issue & focused on the hot idle. The hot ... Login to read more.