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International Automotive Technicians Network
Re: ECM/PCM repair services
Posted to Open Discussion Forum on 6/29/2023 3 Replies

Hi David,

[...trimmed text...]

Those older GM PCMs had horrible PCB traces for mating to the harness connectors. Take a pencil eraser to 'em.

This sounds like the MPI system with two injectors that took turns blastin... Login to read more.

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