TDMKR496

iTrader: (3)

I'm getting ready to do a swap in a 79 Malibu that I'm going to use a PSI harness on (L31, 4l80e, car intake, truck accessories, S475 turbo) I'm not going run mass air on it, and from what I have read the air inlet temp sensor is in the mass air meter, so what do I do??

Grr

iTrader: (2)

if it is the later harness with it in the maf, you can get a replacement IAT plug and cut the 2 IAT wires from the MAF plug, and use a standard 2 wire sensor

i r teh noobz

iTrader: (4)

Get a generic GM IAT (I used a 96 LT1 part, but its pretty much the same part for everything back to the 80s). Cut the wires from the MAF plug that run to the IAT circuit (I think its brown and black) and run them to the sensor. The connectors from most of the EVAP and AC stuff works for the IAT.

Vcious04

iTrader: (16)

Go buy a GMC Typhoon IAT sensor (3/8" NPT Threaded), chunk all the wires to the MAF except black and tan wire. Go to your local junkyard or auto zone and buy a coolant temp sensor pigtail off a 99up Tahoe and plugs right in. I chose junkyard as I paid $1 for pigtail lol

TDMKR496

iTrader: (3)

That's great info guys, thanks. I still have the harness that came with the motor, so I could just cut that plug off and use it.

99VetteFRC

Here is a pic of the Tyhoon/Cyclone sensor. I bought the sensor at Advanced Auto for $23 and the pigtail from GM for about the same.