[RaddM4]

Hey guys- Thought I'd ask for a few opinions and yes i have a jb4 with intake, dp's, and exhaust. When I get deep in to the throttle my cars has been jerking bad like it's not getting fuel sometimes. I have brand new plugs, ignition coils, and they just replaced the high pressure FP because of the same issue and it didn't fix it.( This is the 2nd time the high pressure FP has been replaced) I know the JB amplifies everything, but it doesn't jerk or miss when the tuner is on map 0.

I'm thinking is an injector problems. I haven't had any replaced yet and car is still under warranty. I was was planning on removing the intake and JB4 and telling the dealer the car is still missing and jerking sometimes. Your thoughts or advice....

[SleepyE90]

I had a similar problem and after a couple weeks of pushing the car hard I got several misfires and the exhausts started emitting tons of white smoke.
A nerve wrecking trip to the dealer proved that it was just the injectors that crapped out and need to be replaced (covered under warranty).

[RaddM4]

Dealership just replaced all 6 injectors under warranty. Car is barking again and I am a happy camper.