LALT1

iTrader: (1)

Ok guys, I have been battling a surging issue for a while now and can not put my finger on it. It is always there open or closed loop. at a descent normal rpm while driving anything under 3k it sjust has a bad surge to it. I have tried and checked about everything i know, anyone with any similiar issues?

buffman

iTrader: (9)

well what are you mods????

LALT1

iTrader: (1)

CC306, Hookers, stage II heads, EWP, 58MM tb, 28lbs inj, 1.6 pro comps, and the other standard bolt ons. Car runs great at Wide open throttle, just the normal driving that sucks.

buffman

iTrader: (9)

could just be cam surge...

91rs355

iTrader: (27)

I have the same problem, my car is running way lean so I put new O2 sensors in and it seemed to fix my problem for about 2 weeks it just came back last week. If you find an ansewer let me know. I have a 94 ta with LE2 heads, 847 cam, LT's, 30lbs. injectors.

Schweet97Z

iTrader: (35)

do you have your pcm retuned for those mods?


LALT1 - do you will have your egr valve hooked up? if so rip it off and get it tuned out. or like buffman said, it could be cam surge

LALT1

iTrader: (1)

Egr is gone, not cam surge as this set up was on a different car with no issues. Acts like a damn vaccum leak but cant find anything anywhere.

switch hit

same problem I got a pcmforless tune by Bryan he said he could fix it but I don't really care that much to send it in and wait

00blownWS6

iTrader: (1)

my car does the same **** and i've changed injectors and have had 4 dyno tunes from matt at TTP trying to fix the problem, but it won't seem to go away. i'm thinking maybe fuel pressure issues but won't find out till i put the guage on it. will let you know asap.

LALT1

iTrader: (1)

thanks guys, FP is my concern as well. I also have a herter tune, I still have a old PCM with the MTI tune in it as well, may swap them out just to see if it is smoother with it.