bmojito

ok so now i have a problem with my car falling on it's face at different rpms. it all started when i changed the spark plugs out and added a lil' boost and now it holds 21 psi no higher. it only happens during wot, it just stops for a split second and you can hear a loud pop when it falls on it's face. but then i picks right back up. when it pops the afr's are at 10.4 (yeh i know it's rich) its happend at 4k 6xxxk and a few other random spots any help would be greatly appreciated.

TouringBubble

iTrader: (2)

Sounds like fuel cut. Turn down the boost a little and see how it acts.

bmojito

tried, i bottomed out the controller and it was only pushing like 19 or 20psi.

TouringBubble

iTrader: (2)

The stock boost limit table is fairly low (in terms of load %) and tapers down fairly drastically in the area you're referring to. I'm almost certain that is your issue. Your solutions are:

1) Get a tune
2) Find a way to further lower boost

bmojito

close thread plz. it was the spark plugs the tips were actually had a krazy mold or dust cover on them so the plug was never fully in contact with the wire.

Thegame

iTrader: (26)

Great to hear! Fixes like that are always the best ones!

TouringBubble

iTrader: (2)

Glad you found the issue ...