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Re: What would cause a car to make vacuum at WOT?
Originally Posted by Hitchhikkr
A boost leak downstream of the MAP would not cause the map to read vacuum. Just a boost drop.
Hes runin IHE |
Re: What would cause a car to make vacuum at WOT?
less than ideal ground effecting sensor readings.
Effecting the TPS and MAP |
Re: What would cause a car to make vacuum at WOT?
Originally Posted by igotnothin
I dont think this car is boosted...
Hes runin IHE Vacuum leak still wouldnt cause his problem. |
Re: What would cause a car to make vacuum at WOT?
Originally Posted by Mista Bone
less than ideal ground effecting sensor readings.
Effecting the TPS and MAP |
Re: What would cause a car to make vacuum at WOT?
What?
---- that, tell him to fix his ignorant ----. There is no way to tune that crap with the wiring quality varying in direct proportion to humidity, temperature, and vibration. :l |
Re: What would cause a car to make vacuum at WOT?
1 Attachment(s)
Originally Posted by d112crzy
could quite possibly be it. He has a gay ass wire tuck(taped everything instead of soldering) and relocated battery to the trunk. I'll check existing and add some grounds this weekend.
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Re: What would cause a car to make vacuum at WOT?
Originally Posted by Joseph Davis
What?
---- that, tell him to fix his ignorant ----. There is no way to tune that crap with the wiring quality varying in direct proportion to humidity, temperature, and vibration. :l Man I've trained MONKEYS to solder. Speaking of that monkey, you getting any better at that, Davis?? |
Re: What would cause a car to make vacuum at WOT?
Originally Posted by Joseph Davis
High altitude won't make the engine draw vacuum at higher rpms.
The few times I've seen that it's on a built 2.1 liter with a stock 60mm TB that can't support 230+ whp worth of engine. AFRs were controllable, however, so you need to suspect either multiple problems or something ------- wierd. My only constructive comment: IABs opening? |
Re: What would cause a car to make vacuum at WOT?
It's due to something in the intake tract; if anything the cams are doing a great job as the engine is breathing enough to pull a vacuum at WOT.
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Re: What would cause a car to make vacuum at WOT?
Solved it, just a little unsure as to what exactly it was.
He had a 3" intake that went right behind his headlight, then it went to 2.5" to right behind his bumper lights. I'm thinking there was some sort of restriction and the engine wasn't breathing enough up top. That, or 3" and that long piping is too much for a stock f22? I don't know, but problem solved and it's running like a healthy stock f22. lol |
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