Still bucking . . .

[Nolacobra]

What up guys,

Ive been having a problem with the car as of late ( low rpm buck or hesitanticy under 2500 and around 25% throttle) bascally just leavin my hosue not wanting to wake people lol. . . I replaced the IAC with a new one off a mark 8 and it didnt correct the problem (the mark 8 should be the same minus the fact its harness plug is pointing towards the strut bar which was fun) . . . heres the next steps any input would be great !

- Coolent temp sender but i DOUBT thats what it is. . does it when warmed up too

- throttle body controler

 

[Nolacobra]

?_?

 

[milktasd2]

this is one of my problems too. Cleaned the IAC fixed the problem for about 2 weeks, now its worse than ever.

 

[STAMPEDE3]

How old are the plug wires?

 

[Nolacobra]

hmm . . couple of years, new plugs when we did the n02 and tune. . .didnt even think ab that . . maybe the packs ?

 

[Nolacobra]

ok ! - replaced IAC, replaced TBS, replaced CTS, replaced 02 sensors . . any got any more ideas . . jesus . .

 

[uofipilot]

Have you ever cleaned the IMRCs? When I cleaned mine, I also cleaned the TB, upper intake, lower intake, plates, IAC, MAF, and air filter. I dont know what helped, but I noticed a decrease in bucking/surging. It was really bad when letting off the gas in first. After all of that cleaning, it was noticeably better.

 

[JasonSnake]

what plugs are you using? I think someone here had ill effects with a certain plug brand and the whole car felt like crap.

 

[Nolacobra]

plugs are ngk n02 plugs . .shuold be fine, also i have the removel kit for the runners

 

[Nolacobra]

anyone . . this is weird guys **** ! ! asjpgp'mnasgm

 

[svtmiami]

Throwing any codes?

 

[JasonSnake]

does it only do it when the engine is cold? How about warm startups? Like in and out of a grocery store.

 

[STAMPEDE3]

Change the wires.