Quote:
Originally Posted by UnderFire
We had a similar problem with a high mile 99 Tacoma, never got to the bottom of it. Would fire back up up till about 20 minutes of sitting, after that it would crank and never start, until it sat around an hour. Then it cranks back up like nothing ever happened.
We swapped around everything. Injectors, FPR, fuel filter, plugs, wires, coils, crank and cam sensors, coolant temp sensor, fuel pump relay, swapped the ECU, checked all the grounds on both harnesses, nothing ever fixed or even vaguely improved the symptoms.
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You never swapped the ICM?
On American cars that could be a flood condition from a bad injector or three.
There are only two sensor grounds I’m aware of. They are on the plenum. The ground strap between the head and body just ensures a good engine ground with the chassis. It’s part of the ground from the negative post to fender. You can’t rely on power passing through the engine and trans mounts.
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