I had my car tuned with a gm 3 bar part# 12223861 and now my friend took the map sensor back so i bought a gm 3 bar for replacement and now my car running lean and almost dies out on idle, so is there any other gm 3 bar? Why would make a difference when just replacing the same part? My friends map had a sticker/label on it with the part # but the one i have now doesn't have but they look the same thing..

 

I thought all GM 3bar were the same ...

 

thats what i thought or the one i bought had factory defect?

 

there ar emany different gm 3 bars, with all different scalars and offsets

 

is there anyway i can get the same one that i use to have?

 

I use the one that MSD sells...