Just finished installing a drag 3 kit on a 00 gsr last night. We had to cut the downpipe down to about 5" because it wouldn't clear the oil return fitting. My problem is the car doesn't want to idle and when I take it out of gear it will stall. But if I just rest my foot on the gas pedal it will idle fine. I'm thinking its a fuel issue but could it be from not having any back pressure from the downpipe only being so short.

 

anyone?

Thanks

 

No. You do have a turbo before the downpipe, correct? So you do have backpressure, but that's beside the point as it wouldn't effect anything anyway.

 

What does your fuel sys consist of?

 

Everything is the stock drag setup. Fmu, inline pump. If either of these is hooked up wrong or bad would it cause this? Anything I can try?

 

and suggestions? How bad is it to drive with no downpipe?

 

Make sure the leads on the fuel pump are on right. Also see if the fuel pump is going tin the right direction.

art

 

Could not having either O2 sensors hookup on a odb2 car cause this? We have swapped out the map sensor with another 1 and nothing, also unhooked the vaccume lines to teh bov, fmu, and boost guage and nothing. Please any suggestions this car is driving me crazy.