idle and boost issues

[ray666]

hey guys some help needed.i got erratic idle it jumps between 1200- 2000 rpms any ideas?when it does that it throws my afr all over the place mainly between 10-12.6. i also have my boost set at 15psi and it starts to sputter just before and at 15psi, is that a boost leak? i've even tried lowering the psi but it doesn't matter same result.

[MrSoutherland]

Could be a couple things. I would say boost leak for the sputtering and/or injector problems. Maybe get your injectors flow tested and check your whole bay for boost/vacuum leaks. Let us know after that is done and it still continues.

[ray666]

will do. i checked the injectors they're fine. i'm thinking the boost leak is in the couplers. i had to put a boost tap in the coupler that connects to the turbo. i wonder if that is leaking. i've done the soapy water thing with no real luck. i'll try it again. although yesterday with the car barely warmed up i had no boost leak until it heated up.

[MrSoutherland]

Those couplers have to be super tight. I thaught mine were tight enough and they leaked really bad.

[ray666]

okay i'll x2 check er'thing.