MAP value not showing in the HP tuners scanner
#1
MAP value not showing in the HP tuners scanner
I just got the 5.3 running in my rock crawler. The donor was a 2001 tahoe. It starts up and runs fine but Im not showing a MAP reading on my scanner. Any ideas? When i unplug the MAP it runs like crap. I even tried another sensor I have laying around. i dont have this issue on my LS swapped A-Body.