Just had a superchips Flashpaq installed and XTI cold air intake.... Check engine light came on right before I got home (about 8 miles) and then truck turned itself off 3 times. Had to disconnect the battery to reset and get truck home which it stalled in the driveway and check engine light stayed on. Check gauges light flashed right before each time it turned itself off. Called Superchips but of course they are closed for the day....Not a very good start to upgrading. Error code on superchips is G-F6

 

See if you can flash the ECM back to stock.

 

How do I do that...when I plug in the superchips it reads Tuner Error! Call Superchips! Do you think I have a bad tuner that screwed up the computer..like a virus....this sucks. The truck will not drive more than 400 feet without shutting off. I have to take off the battery cables to get it started again. If I don't, it won't even turnover. ***? I just had this installed 4 hours ago.

 

Okay, she obviously did not like the SuperChips. It was throwing several coldes and shutting down the engine. Put a HyperTech Max Energy in and she screams and sings now. Don't hit 2000 RPMs until 78 MPH. Too soon to tell on MPG increase although the display reads in the 18/19s now when it read 12.5 before. Of course that was with the bigger tires and no speedometer adjustment. I was probably getting 14/15 in all actuality. So I would say I've gained 4/5 MPG. I'm going to hand calculate to get more accurate. It's amazing the power she has going 75-80 to get around traffic. Blew by a Mustange going 70....should have seen their faces. LOL.