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

G'day Kansas, I am 99% sure you should have RPM on the scanner during crank and 100% sure TPS should be present too. Delco systems of the vintage have flooding mode, injection is stopped when cranking if TPS is around 4 volts.

From memory if you bridge the A ... Login to read more.