2003 Pontiac Grand Prix 3800 Engine Diagram

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Now you might think that spraying lighter gas not far off from a warm engine isnt wise, however the flash /ignition tapering off of gas is more or less 400C in view of that you infatuation a naked fire or spark to set it off and Ive used this method for many years without incident. be in your habit through each possible joint one at a time and you should find it. I use a slightly flattened fragment of brake pipe and some rubber hose from the can of lighter gas to have the funds for a spraying wand and permit a direct blast of gas into each area, especially those difficult to accomplish once large implements.

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I did re-check them tho. The master tech did extensive tests on the freshen flow meter and said it was good. taking into account I unplug it and run the motor, the car runs harsh and at 850ish. I can on your own guess that my additional rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of every this. I don’t think the tps has that much direct in the interchange of rpm though? I think it single-handedly adjusts it roughly 1k..

bearing in mind I begin the car, the engine surges happening in the midst of 1200 and 2000 rpm back up and forth. I distorted the IAC and the TPS considering no amend in symptoms. I have noticed that several Lexus SC’s have this similar issue. Prior to this I would have to familiarize the idle readiness screw to humiliate the rpm and it would preserve for a while. Now, the engine is for all time surging to the narrowing where I cannot drive it for startle of damage to the drive train. Any experienced solution?

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