Ok the motor is an LS with pistons & rods. Car has been fully street tuned and dyno tuned. Car runs great the majority of the time but then all of a sudden it starts like stuttering when its just cruising, it feels like ur taping the brakes actually. And usually when this starts the car also starts to just stall everytime u goto stop it. Like when were just driving and try to stop at a redlight and put the car in neutral sometimes it just cuts off. Ne ideas whats wrong with it?

 

BTW the car is turbo and put down 400+ whp on the dyno... Its been running flawless for over a year until just recently. The check engine light also pops in randomly, even after the new o2 sensor install.

 

What code is ?

 

I dont know what code it is... The light comes on for a few minutes and then just goes right back off, it never stays for long and it just happens randomly. Sometimes we drive it and nuthing is wrong at all and it drives fine. The car does the stuttering and stalling even when the check engine light isnt on though.

 

Bump for some help

 

I would say check for A loose connection some where or maybe A loose ground.

 

Sounds like an AFC hack with a bad map sensor wire... What fuel/engine management are you using?

 

Its Hondata tuned by Mase and until about a month ago it hasnt had this problem.

 

You have an intermitent sensor problem most likely.

 

How do I fix this?

 

Bumpity bump

 

No one else have a similar problem before?!?