dkmcgowan Posted March 7, 2016 Share Posted March 7, 2016 So I have been searching for a replacement IAT or air charge temperature sensor, part number 33002382. I found one! The original replacement TomCo part number for 33002382 was 12120. I talked with TomCo and they have another sensor, same threads for our intake manifold, same ohm readings, but just different connector. The replacement you want is TomCo 12134. You can call them and get one ordered up. http://www.tomco-inc.com/ Call 314-646-5300, don't worry about the extension, just go to sales and order 12134. You will notice it's the same type of sensor as the original one, with the element in the middle to get air temperature. The only issue is the connector is different. You simply need to order up a new Delphi Weatherpack connector like this one: http://www.amazon.com/gp/product/B0051PFA5O That is just a 2 pin weatherpack connector for a 16 gauge wire. The new TomCo comes with a connector and a wire. You will want to cut the wires to 6.5 inches like below: Then put on your new female weatherpack connectors. You will need a crimp tool or make it work with some pliers, crimp tool will work much better though. The connector has a label on the back, an A and a B, make sure you stick the wires in the correct slots in the weatherpack connector, B goes to B and A goes to A. Here is the finished connector. Then get it installed on the vehicle. You can remove the old one with a 19mm wrench. Be careful, it can break. I would also add some teflon tape to the sensor. It seems to work fine. I wanted to get TomCo to email me the exact ohm specifications so we could see and compare those to our FSM, but they say they match 12120, which was the replacement for the 33002382, so we should be good. Link to comment Share on other sites More sharing options...
Fernando87mj Posted March 7, 2016 Share Posted March 7, 2016 Was it pricey ? Did it change the vehicle ran , any noticeable improvements? Just curious that's all Link to comment Share on other sites More sharing options...
dkmcgowan Posted March 7, 2016 Author Share Posted March 7, 2016 It cost me about $60 plus I believe $10 shipping. It seems to fit and run as it should. I had one that would give correct readings sometimes and other times not, I could tell with my MT2500 scanner. I hooked this up and it's running pretty smooth. I have yet to hook the MT2500 back up, but took it for a test drive and all seemed fine. Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 7, 2016 Share Posted March 7, 2016 Looks like the early HO IAT sensor. Link to comment Share on other sites More sharing options...
daking Posted March 7, 2016 Share Posted March 7, 2016 Looks good. The sensor looks like the one in my 1991. On a side note: A performance trick is to relocate the sensor to a cooler location. I moved mine, and mounted it on the air box. Link to comment Share on other sites More sharing options...
dkmcgowan Posted March 7, 2016 Author Share Posted March 7, 2016 I hope it's not just an HO replacement unit. I talked to the tech at Tomco and he says the number very closely match the numbers from the Tomco 12120, which was the sensor for the Renix era's jeeps they do not make anymore. I asked them to send me the values in an email today, we will see. They said this 12134 closely matched the numbers for 12120, just needed a new end attached to it in order to work like the 12120, we will see. The values from the Renix era, I believe, are the ones below... Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 8, 2016 Share Posted March 8, 2016 Looks good. The sensor looks like the one in my 1991. On a side note: A performance trick is to relocate the sensor to a cooler location. I moved mine, and mounted it on the air box. I tried that and my mileage went in the tank - makes the engine run richer. Wasn't much of a performance gain either......... Link to comment Share on other sites More sharing options...
daking Posted March 8, 2016 Share Posted March 8, 2016 Well, technically you have to have supporting mods too. ' Link to comment Share on other sites More sharing options...
91Pioneer Posted March 8, 2016 Share Posted March 8, 2016 So.... why did you replace the sensor? Did you know your old one was bad? Link to comment Share on other sites More sharing options...
dkmcgowan Posted March 8, 2016 Author Share Posted March 8, 2016 Rough idle at times, hooked up mt2500 and my air temp was weird and changed too rapidly... runs better, haven't hooked mt2500 back up yet though Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 8, 2016 Share Posted March 8, 2016 Well, technically you have to have supporting mods too. ' Well, technically, I have all the mods. Except for a supercharger......... Link to comment Share on other sites More sharing options...
dkmcgowan Posted March 8, 2016 Author Share Posted March 8, 2016 Tomco responded with the chart and specs for the 12134. The 12134 is a modified version of one of their sensors to match the needed ohm ratings. You will see it's almost dead on for our renix sensors. Link to comment Share on other sites More sharing options...
Fernando87mj Posted March 8, 2016 Share Posted March 8, 2016 Perfect I might need to order one as a spare in the future , thanks for the info ! Link to comment Share on other sites More sharing options...
dkmcgowan Posted March 9, 2016 Author Share Posted March 9, 2016 I made an update to the post, the back of the connector from Tomco has a label on the back of it, and A and a B, you need to make sure to match that on the weatherpack connector, A goes to A and B goes to B. I had it correct by luck. Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 9, 2016 Share Posted March 9, 2016 I made an update to the post, the back of the connector from Tomco has a label on the back of it, and A and a B, you need to make sure to match that on the weatherpack connector, A goes to A and B goes to B. I had it correct by luck. You had a 50-50 shot. :yes: Link to comment Share on other sites More sharing options...
Megadan Posted March 31, 2016 Share Posted March 31, 2016 Is this a special order part, or would I be able to pick one up locally? Find no results searching online for that part number. Link to comment Share on other sites More sharing options...
dkmcgowan Posted March 31, 2016 Author Share Posted March 31, 2016 You have your call them and they will get it shipped out to you direct from them. Link to comment Share on other sites More sharing options...
big66440 Posted April 5, 2016 Share Posted April 5, 2016 Thanks for the info, I've been looking for a replacement myself :thumbsup: . BTW just curious but are the rubber hoses that are capped off with the white plugs in your pic for the gas tank EVAP? just curious thanks. Link to comment Share on other sites More sharing options...
daking Posted April 6, 2016 Share Posted April 6, 2016 Thanks for the info, I've been looking for a replacement myself :thumbsup: . BTW just curious but are the rubber hoses that are capped off with the white plugs in your pic for the gas tank EVAP? just curious thanks. Breather tubes for Axle and Trans. This is how I did mine, front axle, transmission and T-Case. The rear axle has a filter behind the tail light. Image Not Found Link to comment Share on other sites More sharing options...
dkmcgowan Posted April 6, 2016 Author Share Posted April 6, 2016 Yep, breather tube for axle and trans, daking, nice setup on your rig! Link to comment Share on other sites More sharing options...
cruiser54 Posted April 6, 2016 Share Posted April 6, 2016 So, have we determined that the sensor dk got is in fact NOT an early HO one? Link to comment Share on other sites More sharing options...
dkmcgowan Posted April 6, 2016 Author Share Posted April 6, 2016 Yes, they modified an existing sensor they had to match the renix ranges, which is why you have to call with that part number and it's not carried in stores. I emailed for exact ranges and attached response, it matches renix range almost exact, the HO one doesn't come close. Link to comment Share on other sites More sharing options...
cruiser54 Posted April 6, 2016 Share Posted April 6, 2016 Thanks. Link to comment Share on other sites More sharing options...
DirtyComanche Posted May 14, 2016 Share Posted May 14, 2016 Bumping this because I believe I have found a much easier solution. I have not tried it, but all the info I could find indicates that it is either the same, or really close to the Renix sensor. It's probably closer than the custom one in this thread, or as close as any jobber version of these sensors is VS an OEM one. The values from the Renix era, I believe, are the ones below... GM TBI/early EFI sensor values: http://gafieroclub.org/pics/pip/ctsmatchartpp3.jpg (Not sure if that will load, I would just photobucket it but I am on some useless hotel internet that blocks photobucket) Anyways, they're the same. You will need to do the same pigtail mod. However, this sensor can be found pretty much anywhere and is cheap. If I have time I will pick one up and see if I can verify that it works. Link to comment Share on other sites More sharing options...
HOrnbrod Posted May 14, 2016 Share Posted May 14, 2016 What's the GM p/n? Link to comment Share on other sites More sharing options...
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