Both. With VTA wide open the mixture is near best power versus stoichiometric where it would normally be just before boost comes on. Can't leave it like that though. With full on VTA at idle exhaust CO is about 4%. Emissions and fuel economy would be in the toilet.
I've never definitively answered the question because the cause isn't always the same. It's always one of a very few things however. I'm talking about a loss of ampacity in the starter signal circuit mind you, not the other no-crank issues often mistaken for it. And yeah, pinpointing exactly...
Sigh. OK. Since unlike some here you're making an effort to help yourself, don't write like a 12 year old, and have a thick skin here's the problem: Vc should be 5 volts. It powers all the sensors. No Vc = no VTA. No VTA = code 41. Again, a little RTFM would have made that clear. Snark...
The snarky comments are completely necessary. You come here looking for help, free help given out of the goodness of our hearts mind you, while withholding information that would be crucial to helping you. Worse, you *know* the information being withheld is related to your problem. You are...
Lmao. Such "minor" details can be helpful. Any codes? There should be. Yeah, just push the pedal down quickly halfway or more. As long as the TEMS computer is there the lack of actutors doesn't matter. Or just measure VTA...
It should be around what Kenny said. Does this car have TEMS? If so turn on the key (no need to start the engine) and stab the pedal. If the system goes to firm the TPS is very likely working.
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