How is this done. I have an 85 5.0 with a homemade cold air, with open element cone. Any advise welcome, aswell as pros and cons.

Thanks Curtis

 

85,

This can be a beneficial modification if your mixture is a little lean when hot. I have instructions for relocation on a TPI engine, but nothing directly for a LG4 or L69 setup. The idea is to get the IAT sensor in a location where it can get an accurate indication of incoming air temperature but not be affected by engine bay heat.

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Later,
Vader
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"I'm'a do Things My Way - It's My way or the Highway."
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Hi, various companies such as TPIS and The Corvette Consultant, sell these MAT relocation kits usually for less than $40. You probably won't notice an instant increase in power, but it is a good idea even if you're not running lean and every little bit helps.

 

I used a 3/8" NPT tap, ~$10, to tap into the 3" pvc that I made my cold-air induction out of. I left the old MAT in the plenum in case I need to go back, and to act as a plug, and bought a new sensor for the new location. I cut the connector off, spliced in a couple of feet of wire and wrapped it heavily with electrical tape. It runs under the plenum and looks fine, and has held up for a year now. An alternative would be to find matching female and male connectors and make your own extension cable, if you don't want to cut your existing wire or spend the ~$40.

 

I just realized what the MAT is, tell me if im wrong, but i think its the sensor that screws into the underside of the plenum. does it matter if its relocated in front or behind the MAFS? Also my car is running rich and giving me a code 44 (mixture lean), will this effect that?

Thanks, Curtis

 

85,

If the engine is running rich but displaying a code '44', you should check the oxygen sensor and its connections. If the sensor is more than 30,000 miles old, it's probably a good idea to replace it anyway. The MAT will have little to do with the '44' or an overly rich coindition.

By your description, it sounds like you have a TPI. I originally though it might have been a carb with the open element. If it's TPI, this file should help with your MAT relocation:

MAT Sensor Relocation.pdf

You can do the whole job for a lot less than $40.00 with a new sensor.

------------------
Later,
Vader
------------------
"I'm'a do Things My Way - It's My way or the Highway."
Adobe Acrobat Reader

 

i have replaced the o2 sensor, i think my next check would be to check the connection. I guess i never said it was a tpi, but i didnt figure i needed to since its the tpi section.

Thanks Curtis