sittin-sideways Posted November 7, 2009 Report Share Posted November 7, 2009 ok, i just want to know if a bad tempersure sensor can give bad reading to ecu and cuz it to run rich on warm-up,or at idle. and still give you read on you tempersure gauge. Link to comment Share on other sites More sharing options...
FRO Posted November 7, 2009 Report Share Posted November 7, 2009 yes, there are several temp sensors. one for temp gauge one for ECU and one for something else, dont know the one that ur worried bout is the temp sens. with 2 prongs on it.(setting up on the intake) that ones for the ECU, and will make the car run RICH Link to comment Share on other sites More sharing options...
sittin-sideways Posted November 8, 2009 Author Report Share Posted November 8, 2009 thank and switch one is the one that give the reading for the gauge. thank i think it bad am going ahead a replace it thanks. Link to comment Share on other sites More sharing options...
Indiana Posted November 8, 2009 Report Share Posted November 8, 2009 Those are two completely different sensors. One, the CTS is for the ECU and its just a resistor that changes as temperatures of the coolant that flows over the tip of it changes. The temp. gauge switch (sensor) is a switch but its "switch" part has nothing at all to do with the temp. gauge the switch part is to let an automatic transmission be able to go into overdrive and for the HVAC not to be able to blow cold air in your face and the part to make the temp. gauge move is a resistor and it just happens to be in the same screw in part but one has nothing to do with the other its just for convenience. Non auto tranny cars and non hvac cars just use a single terminal sensor, like the one from the trucks that had a gauge only. (hint, its cheaper and does the same thing if you have no automatic and don't care about the hvac part cause it will work anyway just the "auto" part won't act the same when the coolant is cold). What can happen is that these sensors are misidentified and the plug for the CTS used for gauge, the gauge acts differently and the CTS feedback is wacko. Link to comment Share on other sites More sharing options...
sittin-sideways Posted November 9, 2009 Author Report Share Posted November 9, 2009 thank for info, i have 87 5sp, just want to find out witch one is the one' that send info to ecu to demean how much fuel to inrich the engine. Link to comment Share on other sites More sharing options...
Indiana Posted November 10, 2009 Report Share Posted November 10, 2009 The end, that molded plastic part on all is always molded in an oval shape that is raised up a little, its so that boot would fit over it to keep the connections clean and dry. Link to comment Share on other sites More sharing options...
sittin-sideways Posted November 11, 2009 Author Report Share Posted November 11, 2009 (edited) huh, i don't understand, ok if am look at my intake from driver side fender, from left to right. i have a two plung sensor under the thermoset housing, this there one plung sensor that right on the thermoset housing. then egr sensor. and two plung sensor on top of intake, left from the tps sensor. ?? thanks guys Edited November 11, 2009 by sittin-sideways Link to comment Share on other sites More sharing options...
Indiana Posted November 12, 2009 Report Share Posted November 12, 2009 (edited) http://inpcars.com/engine-temperature/standardmotorproductstx32-a.jpg that plastic end, the molded black part that the terminals are in, if you look at it from the end it is an OVAL shape, all CTS are made that way if its not then its a temp. gauge unit and not a CTS. http://cgi.ebay.com/ebaymotors/TX32-MITSUBISHI-DODGE-COOLANT-TEM-SENSOR-MD069879_W0QQcmdZViewItemQQhashZitem334f97dbb0QQitemZ220378684336QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories Go to autozone and type TX32 in the part number box, that's the part and it shows three different pics of it. Edited November 12, 2009 by Indiana Link to comment Share on other sites More sharing options...
sittin-sideways Posted November 13, 2009 Author Report Share Posted November 13, 2009 oh ok, thanks. i will conform that tomorrow. thank alot for you help. Link to comment Share on other sites More sharing options...
sittin-sideways Posted November 14, 2009 Author Report Share Posted November 14, 2009 THANK YOU GUYS, I FINALLY FIX MY CAR PROBLEM!!! bad coolent tempersure sensor, and clean up the connection. went ahead reset tps. finally i can drive me car lol. Link to comment Share on other sites More sharing options...
Shelby Posted November 14, 2009 Report Share Posted November 14, 2009 the sensor is right next to the dip stick hold down bolt Link to comment Share on other sites More sharing options...
sittin-sideways Posted November 14, 2009 Author Report Share Posted November 14, 2009 yup that was the one giving the problem. Link to comment Share on other sites More sharing options...
swifty Posted December 22, 2009 Report Share Posted December 22, 2009 ok on an 88 automatic quest my coolant gauge dont work if i jump the 2 wire sensor, on leg to ground the gauge reads full hot, is this the correct one for the gauge and,dows it do anytihng other than the hvac and gauge Link to comment Share on other sites More sharing options...
pitboss Posted December 22, 2009 Report Share Posted December 22, 2009 ok on an 88 automatic quest my coolant gauge dont work if i jump the 2 wire sensor, on leg to ground the gauge reads full hot, is this the correct one for the gauge and,dows it do anytihng other than the hvac and gauge for our automatic cars, the sensor it sounds like you need is the 2 pronged one, and it sits horizontally right under the large upper radiator hose, NOT THE ONE BY THE DIPSTICK, as Shelby noted. This sensor under the upper rad hose is for the gauge in your dash, but also allows OD to engage in autos when a certain temp. is reached via that sensor. Link to comment Share on other sites More sharing options...
swifty Posted December 22, 2009 Report Share Posted December 22, 2009 ok the gauge doesnt work but the overdrive works fine in all temperatures, and if i ground the one leg of the connector to ground the gauge goes to hot, is it in the sensor its self, and is this the $76 one at advance auto parts Link to comment Share on other sites More sharing options...
Indiana Posted December 22, 2009 Report Share Posted December 22, 2009 its NOT the one with the molded end that is oval. The plastic part that the terminals are molded in to is oval for the coolant temp sensor for the ECU. The gauge sensor is also two prong but not an oval end. Yea that's about the price of them. The sensor in the upper thermostat housing is to shut down the a/c compressor when the coolant is past ~212degrees and that's all it does it has no other purpose. Link to comment Share on other sites More sharing options...
Indiana Posted December 22, 2009 Report Share Posted December 22, 2009 might be called temp. gauge unit or switch, just make sure its two prong and the molded plastic end isn't oval and that's the one. Link to comment Share on other sites More sharing options...
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