[Rooki3]

Looking for some feedback here:

I have a JB4 (map 2) on a '15 235 with about 25k miles. Everything was fine until I installed a VRSF catless DP. Now a few times after pushing the car or WOT I'll get a drivetrain malfunction and the car stutters. I'm thinking it's a misfire.

I've used the JB4 to pull codes and it's not finding anything. There's no CEL either.

Anybody else have similar experience or input?

BTW...changed to map 5 this morning and no problems after about 45 minutes of driving (city/hwy).

[mike@x-ph.com]

You are probably correct, its a misfire.
datalog and send it to Burger Tuning ... With map 5 being an auto tune, its probably lowering your boost to avoid the misfire you are getting on map 2

[Rooki3]

Originally Posted by mike@x-ph.com

You are probably correct, its a misfire.
datalog and send it to Burger Tuning ... With map 5 being an auto tune, its probably lowering your boost to avoid the misfire you are getting on map 2

Thanks Mike!

I'll do some logging and see what they say. I'm also thinking of upgrading the spark plugs as a precautionary measure.

[mike@x-ph.com]

Originally Posted by Rooki3

Thanks Mike!

I'll do some logging and see what they say. I'm also thinking of upgrading the spark plugs as a precautionary measure.

Always a good idea when tuning your car