Ok, so I did OHC mod, got everything hooked up, except the VSS wire, why? Cuz I dont have the blk/gry wire at the SJB or by the e-brake plug. I only saw one post suggesting pin 1 @ the pcm, is that the ONLY place the VSS can be tapped on an 05?

 

Mine was there by the emergency brake pedal closest connection to the side of the truck

 

Got it! I was looking for a black wire and gray stripe LOL...now I gotta find out why my scanguage reads cooler intake temps than the ohc :(

 

OHC is reading the outside air temp scan gauge is reading the air temp from the intake it's self

 

exactly, so my ohc should be reading cooler, not the other way around

 

how much of a difference is it

 

A good 6-9 degrees from ohc vs. ait readings. I know that ambient is cooler than ait, so ohc is probably like 9-14 degrees warmer than ambient Im guessing. I put the sensor in front/to the side of the A/C condenser in some pre-drilled holes...I figured it would be an acceptable location since thats where my silverado had it as well as my wife's toyota.