hey guys, looking for alittle help. a few months ago, there was a problem with my rex and it was down for a few weeks. I fouled spark plugs and it took me a few weeks to figure change them out.

the PFC map got reset, and now, it has the standard map on it, and has almost no power, it moves but not too quickly, and has a 12-10-12 boost pattern, which is what it had before all this happened, and is what it was set up for.

I heard what i would describe as a baseball card in a bicycle wheel, so today i seafoamed my engine and smoke was coming out around the turbos, looked under the car and didnt see anything, so im pretty sure the leak is at or near the front of the DP.

what I want to know is could that be causing either the lack of power or my low EGTs? I assumed the low EGTs were from running rich due to the map on the PFC, but i could be wrong. my EGT probe is located exactly 6in from the DP/turbo gasket. they are around (all temps C) 400 at idle, 550 at low RPM's (2000-3500) and (4000-6000) 640 at higher RPM's.

get back to me guys, I didnt notice the exhaust leak when i first got it running again, but its gotten alot louder.

 

of the 13 people that viewed this no ideas? morning bump.........

 

this is where the leak seems to be coming from, this nut was very loose!


I'm suprised it stayed on, i tightened it back up, but the leak seems to still be there. it is much much quieter, but i can still hear it. there is a video of the sound here http://www.youtube.com/watch?v=n0sBMGdVdLw

 

night time bump, once again, 63 views, no replys.................................?

 

If that nut on the turbo was loose then it's possible the other ones may be loose as well.

Same thing happened to me with the exhaust leak. Just tightened the nuts to torque spec and the leak went away.

 

im pretty sure i tightened them all down, the leak seems to still be coming from that area, or atleast when i seafoam it, it seems to be coming from that area, it looks like it it coming off the bolt itself, which is impossible, but its hard to tell with the radiator fans blowing. what are the chances of a bad gasket? could running rich cause a gasket to go bad?

 

night time bump