Newbie Needs Advise C6 Fast Upgrade
Thread Starter
Registered User
Joined: Sep 2007
Posts: 1
Likes: 0
Newbie Needs Advise C6 Fast Upgrade Hi to all,
I just compleated a FAST90 upgrade on a 2007 Corvette LS2 it all went fine but I seem to have a problem.
I installed the FAST90 and a Granitelli Modified MAF with a VeraRam intake, Used the same injectors and fuel rail and the problem is I keep getting the CEL for running Lean. I used a preditor to increase the fuel curve at WOT and still same issue. So I just ordered 50 lb injectors to try to see if that will help.
I am also in the process of getting an HP Tune done on the car but the tuner is saying that I should take the MAF off an put the original in so I tried that and still get the code for running lean. gerrrrr.
I did go ahead and put the modified MAF back in and the car run s more agressive by far.
I also checked for vaccume leaks by using LP GAS and leading around the intake at idel to see if it would disrupt the engine and no leaks were found.
any ideas???
I just compleated a FAST90 upgrade on a 2007 Corvette LS2 it all went fine but I seem to have a problem.
I installed the FAST90 and a Granitelli Modified MAF with a VeraRam intake, Used the same injectors and fuel rail and the problem is I keep getting the CEL for running Lean. I used a preditor to increase the fuel curve at WOT and still same issue. So I just ordered 50 lb injectors to try to see if that will help.
I am also in the process of getting an HP Tune done on the car but the tuner is saying that I should take the MAF off an put the original in so I tried that and still get the code for running lean. gerrrrr.
I did go ahead and put the modified MAF back in and the car run s more agressive by far.
I also checked for vaccume leaks by using LP GAS and leading around the intake at idel to see if it would disrupt the engine and no leaks were found.
any ideas???
Make sure you capped the vaccum line at the back of the intake on the passenger side, right below the MAP sensor. I have heard of cars running lean using an aftermarket Mass Air. The predaor might make it even more lean. The HP tuner should do the trick
