**too big or vacuum leak some how i am not seeing, no exhaust leak for sure.

No codes, no adjustments to fuel trims, no leaks. i can put my stock box and 91 tune back and car hooks good, c&l should be better.
i cant stress how lug it is off the line.
i has got to be a vacuum leak of some sort if the car works well in another set up, by my deductive reasoning im just really ...

95 MM MAF COLD AIR INTAKE TUNE...
i am stumped

Well i recently purchased a c&l racer intake, and programmed it with the u7140 predator, car has no codes, but is running like a dog, i read all these reviews about how amazing this thing is, and not only has my power gone, but mileage dropped from 19.5 mpg to 19.2, low end feels like im starting ...

ok so i put the stock maf back and factory air box, then i ran the origional back up and the engine seemed like it was reving really slow and the rpms floated a little long to get back down when i coasted for a little bit. i did my readings and found that it read 151 gm/s @3180 rpms... 4.67-8 volts ...

car acceleration is so lame at full operating temp

runs fine in idle... will go safe mode if you drive it like that...

btw i cleaned everything aswell maf, tb, filter. and have good fuel pressure

i just put a new maf sensor in a couple weeks ago jet performance series, and the problem didnt get any better, the who9le reason im running these tests is because ive lost some serious accel;eration and what feels like torque, especially when warm or at operating temp. my mustang drives like a ...

hey FYI my MAF voltage is only reading 2.1 which is also way low, im starting to think that if the traction control wasent off, which by considering the two number would appear that it wasent, i got a good problem here.

hey thank so much for your response very helpful, i beleive however that the traction control was off i usualy drive with it off always and i can realy feel it when it kicks in, but i will make sure, i need to see what the throttle body angle was i didnt see a spot for that in my reading.

i am running a 2005 mustang GT manual car currently modded with the predator and jlt intake and matching tune. i ran an engine diagnostic test and took info from a point where i was in 3rd gear @ 4152 rpm. the MAF reading was @ 21.21 gm/s which ive researched to be extremely low for given the ...

i am running a 2005 mustang GT manual car currently modded with the predator and jlt intake and matching tune. i ran an engine diagnostic test and took info from a point where i was in 3rd gear @ 4152 rpm. the MAF reading was @ 21.21 gm/s which ive researched to be extremely low for given the ...