I am havin sputtering problems under WOT. sputters like crazy. Can anyone think of wa else i can do inorder to get rid of the problem?

 

lol good description of the problem...

 

good one

 

The car sputters under WOT.... like crazy doesnt let it go further.... it starts at about 4k... right around boost area. I tried lowerin the fmu disk to a 8:1, i got a SAFC2 and tuned the fuel down a little... any ideas on y its doin that or how i can fix it?

 

Put it on a dyno man.

 

See if you can get a video of the problem. It sortof sounds like bad coilpacks. But it could be something weird happening with timing or fuel.

 

well tilley looked at it and said it wasnt the coilpacks

 

Well then it's probably timing or fuel related. Need more info to tell I guess. You don't have a wideband do you?

 

no gettin dynoed the 18th

 

Sounds lean. I had that problem when my hobbs switch wasn't turning on.

 

what spark plugs are you running. If they are too cold it will act up around 4000 to 4500 at wot.

 

one step colder plugs......

 

I think your car is possesed. Do you have any check engine lights? I think you should make a drive down here again and we can play around with it.

 

yeah tilley maybe i should. thats funny u posted at 1142 and i called u at 1:05. hahah very funny

 

Check your plugs! Perhaps the gapping is off? Under-boost you may be outting the spark. What plugs are you using? What is your gapping? Also, check to see if your plugs are fully seated in the head. Loose plugs can cause this problem too.

 

Sorry for the thread jack... Im getting alot of hesitation on acceleration/ max feels really slugish/cant even break traction. Still gets 10psi. Pulled code for knock sensor, would knock sensor cause this? Also getting rattling from time chain .... thanks