I just installed my JLT/ X cal3 combo from Brennspeed. I got it loaded with 87,93,93+ race gas tunes. The problem I am having is with the 91 and 93 tunes. After uploading either of the tunes the check engine light comes on after 5 sec. of run time and in 3rd in 4th gears from 5000 to 6500 it jerks real bad and pops through the intake. The code it throws is for the o2 heaters. Anyone have trouble like this they dont seem to be of any nor want to help. Thanks in advance!
And yes the car has a full tank of Sunoco 93 in it.
And yes the car has a full tank of Sunoco 93 in it.