i got the car tuned my jeremy and it was running GREAT but i was running out of fuel up top...a week before i changed the pump it started to break up up top. i changed the filter, pump, and plugs. today we datalogged the car and im getting some knock retard in 2nd and 3rd between 4900 rpms and 5200 rpms just for a second and it goes away but the car doesnt run like it use too.....its running like crap up top. i doubt its the tune so i was wondering what else i should check....ill post up the datalogs tomorrow.

 

Lets see the logs. I thought that this was gonna be about your girlfriend or something when I first saw the title!

 

I though she took your car.... or cleaned out your bank account of all your mod money.

Whats your injector duty cycle look like?

 

some things were pointing at the map sensor...changed it...car wouldnt start....put the old one back on...car wont start....it starts for a split second the shuts off...no check engine light....