604gz

iTrader: (1)

So i had to put in a new motor, i swapped everything over from the old one i set up the the turbos and everything made sure all the hardware and line are run correctly. i start my car and it runs, it is not running smooth as it should and it is very lean 16 on idle goes down when i throttle i ran for codes and get bank 1 is lean also i think the down pipe on the passenger side might not be fully sealed

G37Sam

It could be a million things really, doubt it's an exhaust leak though.

Do you have a Fuel Pressure gauge? Check your vacuum lines as well. Maybe the new engine flows a lot better than the older one?

You're either seeing more air, or less fuel, or the MAF sensor is not sensing right. Happy Troubleshooting.

604gz

iTrader: (1)

From what i have just read according to the gtm manual my car wich is a 2008 has a diffrent fuel pump assembly and the new engine wich is from a 2009 has a completly diffrent fuel pump assembly now i am wondering if that is the root of the problem

ANMVQ

iTrader: (13)

Are you trying to run the stock pump? :/

The after market pumps come with hardware and new fuel line

604gz

iTrader: (1)

I got it all figured out such a rookie mistske i had spark plug wires 3-5 reversed it working perfectly now!

G37Sam

^ That still doesn't make sense but I'm glad you got it sorted out haha