6637 filter switch
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Laughing Gas
Joined: Mar 2008
Posts: 967
Likes: 7
From: coquitlam,BC
6637 filter switch
Okay, i just finished putting in that large filter, boy that is a tight fit around the inlet pipe, anyways when i was removing the OEM air box there was a small,what looked like a sensor of some sort, protruding into the side of the box closest to the firewall. Anybody knows what this is for and what to do with it now that the box is removed? Thanks.
Rather Be Floatin
Joined: Oct 2005
Posts: 2,468
Likes: 0
From: Marble Falls, Tx.
Its a air intake temp sensor it senses the air temp and sends a signal to the pcm. As for my temp sensor, I tied it to the end of the master cylinder as close to the filter as I could get. This way the PCM is getting the most accurate reading of the air going into the filter.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
r Yes it is you AIT sensor. It's in the same series of sensors as your EBP. Leave the little plastic sensor plugged into the wires and zip tie it as mentioned above. Rotate the sensor and it comes out of the air box. If you leave the sensor unplugged (on 99.5 & later models) it will disable the EBPV (Exhaust Back Pressure Valve) and eliminate the high idle on cold days.
Senior User
Joined: Feb 2007
Posts: 424
Likes: 0
AIT Sensor
My mechanic swapped my stock filter box for 6637 without my knowledge. I can not find the AIT sensor so I am assuming he removed it.
I'd like to have it on the truck. Can anyone tell me where it gets wired to so that I can trace backwards for the sensor?
I hope I don't have to buy a new one with wiring.
Thanks..'
I'd like to have it on the truck. Can anyone tell me where it gets wired to so that I can trace backwards for the sensor?
I hope I don't have to buy a new one with wiring.
Thanks..'
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Hotshot
Joined: Jan 2008
Posts: 13,144
Likes: 11
From: Rochdale MA
My mechanic swapped my stock filter box for 6637 without my knowledge. I can not find the AIT sensor so I am assuming he removed it.
I'd like to have it on the truck. Can anyone tell me where it gets wired to so that I can trace backwards for the sensor?
I hope I don't have to buy a new one with wiring.
Thanks..'
I'd like to have it on the truck. Can anyone tell me where it gets wired to so that I can trace backwards for the sensor?
I hope I don't have to buy a new one with wiring.
Thanks..'
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