[Fern8321]

im having this same problem..scanned the car and i got the misfire code..erased, and the car is running fine

[TriniJots]

I have been struggling with misfire problems for the past couple months....my car has been at the dealer more than it has been with me.
Its either they dont know the fix....or they are just trying to be cheap and replace the smallest thing instead of fixing the big problem.
Injectors, coils, spark plugs and HPFP have all been changed numerous times....BONE STOCK TOO!

[ETS Michael]

Mine was dirty valves, they cleaned the valves and the car runs perfect! I had this issue off and on for 3,000 miles.

We replaced the following parts

Turbochargers
Fuel Pump
Injectors
Checked for Vac Leaks
Checked type of fuel
the list goes on and on

The car ran fine every time after resetting the ecu. After 500 miles or so the problem would come right back.

They cleaned the valves and the problem was gone with no ECU reset, we reset the ecu anyways for the adaption table and it's been 800 miles and the car is still running like a champ!

No problems to report yet.

Michael

[dzenno]

meth would take care of the intake valves, especially if you get it installed early before major buildup has a chance...makes them shine like new

[ETS Michael]

Yup! We are going to be running an auxiliary fuel system. Hopefully it solves that problem

Michael

[cstavaru]

Originally Posted by badass335

Sounds like injectors are shot. There was an issue where the injectors would 'bleed' fuel throughout the night or when parked for a longer period of time. When you start, the excess fuel would cause misfires. Warm starts never had bleed so no issues.

I believe there was a bulletin out on this somewhere on this forum. Needs to go in to dealer.

+1.

[ETS Michael]

I had a leak problem before as well. This car loves the dealer... that's for sure!

Michael