Hey guys...
For the past couple of days I've been having some issues with my S.
A little background on the car: greddy turbo, aem ems, tuned by jeff evans.

I noticed my truboost gauge reading lower than normal vacuum. Went from -20 to eventually -12. I then found out the problem was a t bracket connecting 3 vacuum hoses was burned and leaking. I changed it out for a new one, now it was reading -20.

I took the car out later that night...and while cruising on the highway at about 65mph, I noticed the car hesitating at around 3500 rpms in 6th gear. The hesitation got worse and turned into a bogging feeling, making the car decrease its speed and eventually had no pull whatsoever. I pulled over since I was doing about 15 mph even while pressing the gas.

Once pulled over, the car's idle dropped, along with the vacuum and shut off on me. After cranking a couple of times, it would start, but with rough idle and eventually would die as well.

Oil pressure was good, vacuum was at -3 and egt was at 100 or so when I started the car back up and then died again. I gave up and checked the bay for vacuum leaks but everyhing seems intact. I'm completely stumped, so I towed the car and hoping to take a look at it this weekend.

I would appreciate any input, ideas, suggestions and help that anyone can give me...

Btw. The hesitation at 3500 in every gear was present since I bought the car, just didn't think it was anything major

 

what map sensor is he using?

 

Definitely sounds like maybe a MAP problem.
I had a wire come loose under the dash from my previous comptech supercharger ECM install.. One of the MAP wires had a hard solder joint and came loose and I had the exact same problem as you are.. Car was dumping massive fuel and wouldnt run due to no MAP signal.

 

no codes are being thrown off either...

btw its an AEM Map sensor.

 

i don't think a aem ems would throw a map sensor code, but i could be wrong

 

Hows the fuel pressure?