Need help on a custom tune
Thread Starter
Teching In
Joined: Mar 2012
Posts: 9
Likes: 0
From: Pennsylvania
Need help on a custom tune 
I own a 98 ram air ws6 trans am, 6 spd. I have installed a volant cold air box and intake. I have also installed a Granatelli MAF. After using a Hypertech tuner for my custom tune i consistently get lean codes in bank 1 and 2 after about 100 miles. Codes are 0171 and 0174. If I put my stock MAF back in I don't get the lean codes. It runs like a ripe date with the Granatelli MAF and custom tune but I don't want to damage my motor. Any ideas? Any and all comments would be appreciated.Pete aka Moondoggy
its in your tune the hyper tech is set up for stock maf it does not know what to do with the Granatelli so your parameters are out of whack. i would suggest just keep your stock maf and sell the granatelli a stock maf is good to like 450 hp before it becomes a restriction if you insist on keeping the Granatelli then you will have to get it costume tuned and yes if you run your car lean you will mess it up by melting the piston and rings cause lean equals to much heat
