Ok so i recently switched from speed density back to MAF. Well I got my maf on and everything, but when the car runs is starts but turns off and doesnt idle at ALL. BUT when i unplug the MAP sensor it runs perfectly. The MAF sensor works, the MAP sensor is a BRAND NEW Evo X map sensor, i also tried my Omni 4 bar and still does the same thing. all the wires are correctly wired up. I even took it to Forged performance to get my tune to see maybe it was something with the ECU but Sharif could not figure out what was wrong. He offered to leave it figure out the problem but i decided to take it to see if i could find the problem first withou paying more money for shop time. so here I am.

When the car is running without the MAP sensor plugged in, I then plug the MAP sensor back in and the car dies...

 

Are the settings in ecuflash correct for the evo x sensor?

 

no they arent but when I had the omni 4 bar on they were correct but still did the same thing

 

ttt

 

Sounds like a tune issue. Likely lean... you have access to trim values when it's stalling? I'm assuming you're running closed loop. Most of my experience is with stock-ish vehicles, what exactly did you do when you went to MAF from density?