Is something wrong.....

Gunslinger9416 · Post by **Gunslinger9416** » Sat Sep 12, 2009 2:33 pm

I bought a U7158 for a 2001 Ford Lightning, installed the 91 Performance Tune, no pulley. My gas mileage immediately dropped, and the power increase is negligible at best, I'm just wondering if I was too hopeful at what this could do for my truck or did I just get a bad tune, and need a new one?

Post by **mikel** » Mon Sep 14, 2009 11:07 am

You should feel solid gains of 35+ HP in a stock lightning, more with a pulley, may want to get it on a dyno to verify fueling is correct.

Gunslinger9416 · Post by **Gunslinger9416** » Tue Sep 22, 2009 5:17 pm

What can I do to correct that?

Is something wrong.....

Is something wrong.....

RE: Is something wrong.....

RE: Is something wrong.....