if it's one like this then pull the **** out and turn it clockwise a couple of turns. Mine was releasing too low as well and had to adjust it. It might take a few tries and some data logging to get it right, but just keep adjusting it until you get it to max out the MAP around 35-36 psi(whatever your baro is plus 22). Or just turn it clockwise all the way then back it off until the check engine ligh stops coming on from the 0238 code.




Get your MAP to level out more in the mid 30's.......

 

Yup, that's the one! I cranked it down for the trip to the airport this afternoon but my AE pause skills are lacking so I got squat for data. Oh well, next week on the way home!

 

sounds good, on your way home just keep an eye on the MAP while driving. Get on her once in a while and see how high the MAP reading gets. Don't think this is related to you stumblnig/stalling problem. But it's something that needs to get corrected.......

 

I forgot to post up the resolution to my issue.

Turns out my chip (DP Tuner) wasn't making a good clean connection with the ECU. I removed the tuner and the problem went away immediately.

Thanks all for your help!