I finally got my car running, After 2 months... Let me tell you I was running only 6 pounds and the car hasnt been tuned yet and it was great.. But after I step on it and go to stop the car will stall, now I am running open exhaust till I get my flex pipe welded could that be it?? The car is also running rich I adjusted the timing.....I really dont know...Also the breather off the valve cover on the drivers side has suction could that be a loss of vaccum press...... I really dont have a clue... Any suggestions would be great....

you woundnt happent to have your BOV or bypass valve what ever you want to call it, vented to atmosepher would you ? if you do thats probly your problem

I have a DSM BOV and I have it recirculated...

Whats your vaccum at idle? The open breather could be the culprit, but I'm kinda suspecting something else. How is the idle, nice and smooth? Are there any other abnormalities?

John

What ECU are you running? I'm running the stock DE ecu and my car does the same thing.

The open breather on the valve cover is actually a vacuum leak for the intake system. It comes from the intake manifold, through the PCV valve, through the valve cover and to the breather. If possible you should try and put it through catch can and back into the inlet pipe before the compressor on the turbo but after the MAF. Pretty much in the same area that the BOV recirculates to. This is the environmentally friendly way to do this. The other way would be to cap off the PCV valve on the valve cover and do the same to the PCV lines to the intake manifold. At this point you can vent the crank and valvetrain area to atmosphere without any ill effects to driveability. Technically you would not pass an emissions test visual inspection if you set it up this way.

I have a JWT ecu with S3s programs, injectors program, and turbo programs.......my idle is pretty steady its between 800 rpms to about 1100 rpms...

Originally posted by SER2FAST
The open breather on the valve cover is actually a vacuum leak for the intake system. It comes from the intake manifold, through the PCV valve, through the valve cover and to the breather. If possible you should try and put it through catch can and back into the inlet pipe before the compressor on the turbo but after the MAF. Pretty much in the same area that the BOV recirculates to. This is the environmentally friendly way to do this. The other way would be to cap off the PCV valve on the valve cover and do the same to the PCV lines to the intake manifold. At this point you can vent the crank and valvetrain area to atmosphere without any ill effects to driveability. Technically you would not pass an emissions test visual inspection if you set it up this way. You said "If possible you should try and put it through catch can and back into the inlet pipe before the compressor on the turbo but after the MAF". But wouldnt this put oil into the MAF and the turbo compressor housing. How will this affect both peices?

The catch can should recover the oil that goes through the system without getting into the intake pipe. Set it up so that it drains back into the crank case like the factory catch can does.