Wiring Diagram For 1999 Pontiac Grand Prix

Check the hose clips for tightness and inspect the trunking for any cracks or splits and then all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best artifice to find a leak is to have the engine admin and warm and next vaporizer lighter gas /propane or brake cleaner with reference to each joint in turn. If the engine rev s going on you ve found your leak.

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I did re-check them tho. The master tech did extensive tests upon the freshen flow meter and said it was good. as soon as I unplug it and direct the motor, the car runs rude and at 850ish. I can single-handedly guess that my supplementary rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of all this. I don't think the tps has that much direct in the different of rpm though? I think it forlorn adjusts it not far off from 1k..

I'm reviewing your ask now, and will herald help past your respond ASAP. Rgds Greg. What oddity codes accomplish you have. Does the engine control in the manner of the MAF disconnected. considering the noisy hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF connected it is unaided measuring the freshen that is getting later than the MAF, in view of that if the intake manifold is sucking in freshen the air to fuel ratio will be completely out and cause the engine to stal

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