After upgrading to 560cc injectors the car really bucks after letting off from WOT

[kobykris]

After building full boost ~20psi the car really bucks after I let off the gas from WOT. It is kinda violent and whatnot, but it doesn't backfire or anything. The logger shows low/mid/high fuel trims all sitting at 100% and sometimes the mid/low will sit around 96%-98%.

 

[nazthug]

mmine does this too sometimes, its reeally annoying and violent
im on 550

 

[94EclipseGST]

You are probably running rich. It sounds like you are experiencing rich studder. I had this problem and I had to lean things out quite a bit to get rid of it.

What are you using for tuning?

 

[uh-oh]

i had the same problem with my car...i have a 420a turbo..but on my car advancing the timing a little bit (maybe 2 degrees) solved the problem...just an idea for you 4g63 guys to try

 

[kobykris]

Yeah I thought about that, but I figued it wasn't running rich enough to do that. I can try giving her a bit of timing tonight and see if it still happens.