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International Automotive Technicians Network
Re: 1987 buick Lesabre
Posted to Technical Discussion Forum on 4/3/2007 3 Replies

Hi

Did you check the signal REF HI on the pin C (PPL/WHT)to the module going to the ECM. You should have a good square signal. You need that signal to start the simultanius injection sequence. I'm telling you that because you mentionned that you don't have i... Login to read more.

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