U0100 communication error to PCM

[Twhite71]

Today i was going to work and my AP shut off while driving so i went through the AP and found that i have a Communication error to the PCM.

any help on this would be great. the car is not reading any check engine light though.

[mickey_g]

Which map are you running? Any issues while driving or idling? Try reflashing your map and it should disappear.

[Twhite71]

Which map are you running? Any issues while driving or idling? Try reflashing your map and it should disappear.

Running Stage 1 SF. ive noticed for the last week or so that when just driving, my the car doesnt go over 0 psi unless i give it some gas! which is prob normal but when i wasnt running the tune i didnt notice it. im going to reflash it after work and hopefully that will work.

[mickey_g]

Yeah reload the map and see...as for the hesitation post a log and we can review it.

[Twhite71]

Yeah reload the map and see...as for the hesitation post a log and we can review it.

i reloaded the map and it has cleared in.

in regards to the log, im new to the AP i know how to do it just dont know how to put in into the computer?

[mickey_g]

get accessport manager off cobb website and connect it to the computer via supplied USB cord. You should be able to download the logs to your computer.

[Superchargedx]

Pretty sure that is a dummy code that comes up every time you scan it. Try scanning a friends known good car for the same code