Runs like crap any help??

[s141996]

Ok guys here is my question my sr20 runs fine for the 1st 10min and then once i get to 2k rmp all the way to 3k rpm it starts running funny it jerks and if i gun it , it runs fine 4 a bit ,wat the hell is going on? i'm about just throw this car of a building thanks

[ItsTravis]

its because your running an sr, drop an ls1 in it haha sorry no real help

[silva.240]

fuel pump sufficient? wiring issue? let me know more about what you have done besides the sr20 motor. any aftermarket engine upgrades? could be a bad ground?

[silva.240]

extra grounding of the motor always helps make it run much smoother. trust me. try 2 extra body to motor grounds. and a new battery to chasis ground

[s141996]

what part of socal are u from ? u text me anytime would apprciated 714 7822536

[s141996]

I did a rebuilt on it and it was ok till few days ago when i tried changinc the mafs I put the sr one that belong on it and thats when i noticed it acting different so i put the old one that i was running on it and still was doing the same!!! I am so lost now

[s141996]

oh and also i saw that the car was not having good ground but i thought i fixed it

[s141996]

What can be causing this??

[DataXUnknown]

check TPS maybe?

[s14canyoncity]

i assume you check the wiring on the MAF .. i had the same issue on my KA

[s141996]

i'll double check thanks

[theboy]

pull the batter and reset the ecu, maf mite have told it to run weird when you swapped them out. I had the same issue with my first kade. Ran perfect again after.