PCM Diagnostics & Tuning - were is the computer
10-23-2007, 09:22 PM
i have a hypertech max energy chip. It just changes shift points/firmness. You do it all on your computer then you plug it into the cars computer. Where exactly is the carss computer. i dont no where to plug it into
10-23-2007, 09:31 PM
on LS1 fbodies its under the hood on the pass side.
10-23-2007, 09:41 PM
does any1 have a picture ...is it marked by anything i dont get where to plug it in
10-23-2007, 09:52 PM
What do the instructions say to do? It probably plugs into the OBD-II port. If not you need to unplug the PCM from the harness and then plug it into that.
10-23-2007, 11:06 PM
there are no intstructions. it just has acrazy looking plug that is suppose to plug into the cars computer
10-24-2007, 12:26 AM
On LS1's last I knew (long time ago) the Hypertechs plugged into the OBDII port. its under the dash, right next to the steering column.
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