Thread: No start issue
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Old 02-14-2023, 09:33 PM   #13
RustyPile
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Join Date: Dec 2017
Location: Elkhart, Texas
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Re: No start issue

I've been retired for several years but I worked over 30 years as a auto mechanic.
when sequential FI came out, I did a lot of driveability and no-run repairs.. It's been a long time since I've been under the hood of a sequential FI vehicle, so I may be wrong on some of this..

As you know, it takes two revolutions to complete the 4 "cycles" of an engine.. The computer has to determine a few things when you first "hit the key".. The crank sensor takes care of telling the computer the engine RPM.. The cam sensor tells the computer where in progression of the 4 "cycles" each piston is.. Only then can it fire the correct injector. During the start sequence, the ECM will fire all injectors simultaneously only to give a little "richness" to the incoming charge. To continue to feed fuel, the ECM needs to know which injector to fire first..

I said all that to say this: Check the cam sensor and its related wiring.. I'm betting that's your problem....
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