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New MAF now sputter at WOT?

S

Stoker0560

New member
99 GTP, 175k miles, MAF was acting up and car would die randomly,to get me off the interstate I unplugged it and the car actually ran great, finally got around to replacing the MAF and now under WOT the car will cut out randomly, if you back out just slightly it won't do it! I checked Fuel pressure, 40psi at idle, it jumped up to nearly 60 while stalling it up which I didn't understand, and it flows about 26 psi constant at idle.. It's been doing this for awhile now...
 


sounds ignition related. or maybe a weak fuel pump.

are your plugs in good condition and gapped right? how are your plug wires
 
Could be a bum MAF. It has happened quite a bit with parts store remans. Unplug it and see if it still acts up.

Sent from my SkyRocket
 
Put the car on a dyno today for an event we put together, first two runs it ran 161hp and both runs it sputtered at 4700-5k rpm.. For the heck of it I unplugged it and it made two perfect passes ran great and pulled a 184hp 223tq. Car sat for a couple hours, went to leave with it unplugged and it struggled to idle so I ended up plugging it back in, mashed it down the road and sure enough, sputtered out at 5k again..
 
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