So me and a friend are trying to tune my car. He has tuned many before and people like it. But here is an issue that he had posted on a different forum and he told me to post it here to see if anyone else knew. Here it is:
**Had a buddy come over today for a tune on his 3.4/headers etc setup. First off the negative spark values is strange (which Im aware of)
But after watching different pulls the WOT spark varies from -4* sometimes, to -14* not to mention his GFS table WOT spark is about 19*.. I zero'd out the AFR spark modifier, the AIT modifier, the TCS spark reduction...
Any have explanations? Its quite strange.. any help or discussion would be great. ***