[sharkbait]

Well, last night i installed 30lbs FRPP injectors and a 255lph BBK pump.
also like fuel filter - serpintine belt and tensioner pully.... blah blah blah

Anyway when i finished at 2:30am i took it out for a test drive and it was idling really really rough.... mid range it ran alright. So i mashed the throttle and the car started jerking

Kind of like when someone first learns to drive a stick and the cars jerking forward. but yea the car like jerks and idk whats causing that.

Can someone help me?
could it be the computer trying not to flood inself?

 

[97S281]

Did you recalibrate the MAF to match the larger injector size?

 

[FX4DTUF]

^+1 i was about to ask the same thing

 

[sharkbait]

No =(

and i found out thats whats wrong.

 

[ModMustang97GT]

I love the comment about someone learning to drive a stick. I know exactly what you are talking about. You need to get it calibrated.

I had open long tube headers for a few months. The sensors were hooked up, but the back draft at the end of the Long Tubes made the level of oxygen way too high. Car sounded like a pro-fuel dragster, but it ran like a flooded rental jet-ski. Sounded bad ass, but 9 mpg got kinda painful while I was in college.