Today I tried to started my car and it was running very lumpy and wouldnt stay running without me gasing it. When i ran a datalog it said I was running 10.3 psi of boost. After holding the gas for awhile the car would run fine. The boosts just turns on and off. What could be wrong?

 

just an idea. but change your map sensor

 

It sounds like a bad map sensor or one of the wires are shorting out.

Adriano

 

Yep, I'd guess map sensor too.

 

ok thanks ill try installing a new one

 

make sure its wired correctly...if you switch any two wires, you could see the same thing