While the idea of a plug ‘n play harness is a great idea and would have been the preferred way for the guys at GM HPVO to design the kit, the part numbers for the connectors that plug into the production wiring harness do not exist. The connectors that would plug into the production harness, that look like the sensors that are removed and replaced in the kit, have never been tooled by any source and the cost to tool the connectors would have made the kits too costly to bring to market.
However in order to follow the rule on development cars, that they need to be returned to stock production spec in order to be sold, GM HPVO created a jumper harness so they would not need to replace the entire engine wiring harness to put the car back to stock. For these vehicles, they created plug ‘n play connectors by cutting up production MAP and TMAP sensors and using part of the sensor housing to create the missing, un-tooled, connectors. GM HPVO then soldered the wiring harness from the kit (p/n 88988320) to the newly created connector; the connectors were then sealed with RTV and taped up.
If you want to try your hand at making your own plug ‘n play harness, you can create one by cannibalizing the production sensors or getting a couple of spare sensors (12592016 - $90.89 MSRP and 12592017 - $85.23) and using the connector harnesses that come in the kit.
10/08 - Update from GMPD:
Q. So it's been about a month now. I'm just wondering if we will get any type of update? Maybe some papers being signed even a still waiting. Maybe if the kit is even going to come out still or if it's being completely dumped. Or even a guys over at GM are eager to get it out there.
A. On September 29th CARB requested the updated spread sheet of all calibration part numbers that are included in the stage kit. We updated and sent it right back. This is the spread sheet that CARB uses in their EO publication. So....We are really close!
