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Re: GM TBI ECU #1228746 No Injector Pulse
Posted to Technical Discussion Forum on 12/28/2018

Hi Kansas

A few things inhibiting injector pulse,are security or no reference signals at the ECM. I believe the pick-up coil in the distributor is a probable cause of the loss of injector pulse. Are you getting both switched voltage as well as Bat+ at the EC... Login to read more.