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Re: 1991 S10 flashing check engine light no cummunications
Posted to Technical Discussion Forum on 8/14/2015 2 Replies

I seem to recall the MAP and the TPS connectors could be switched back then. MAP connector should be green.

Flashing check light? Don't recall a thing about that, other than flash codes. Is the circuit in tack?

An ECM/PROM mismatch, I no longer have the so... Login to read more.

2 Replies Received (View Replies)