I’ve had a strange issue the past few weeks. No codes, vag scan is clear. Car starts cold the way it always did, everything seems normal, until i go into any forward or reverse gear, then it runs very rough, almost seems like it’s going to stall.
Put back into park/neutral, keeps running rough which i can clear with a quick tap on the pedal, but the same happens when in gear again. After about 1/2 mile of driving it goes away and hasn’t happened any time when warm.
I’ve tried going into gear as soon as it starts, different gears, forward then reverse, but always the same result.
I have JHM tune with SAI delete and it’s coded out. I’m aware of the usual rough running to get the cats warm, but didn’t know if anyone had the issue relating to transmission in drive.
Car seems to have full power, no other performance issues. I’ve checked for vac leaks, but can’t find anything.
Any thoughts?