PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

were is the computer

Old Oct 23, 2007 | 08:22 PM
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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
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Old Oct 23, 2007 | 08:31 PM
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on LS1 fbodies its under the hood on the pass side.
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Old Oct 23, 2007 | 08:41 PM
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does any1 have a picture ...is it marked by anything i dont get where to plug it in
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Old Oct 23, 2007 | 08:52 PM
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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.
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Old Oct 23, 2007 | 10:06 PM
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there are no intstructions. it just has acrazy looking plug that is suppose to plug into the cars computer
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Old Oct 23, 2007 | 11:26 PM
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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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