Socks Posted May 25, 2015 Share Posted May 25, 2015 Now then my darlings.. Got a big box full of various sensors from 4E-FTE and 4E-FE Engines. From both EP82 and EP91 Cars... Get your knowledge caps on... Whats what here.... From Left to Right... coolant temp sensor for air con/hvac. 1, Green/2Pin - Coolant Temp Sensor (ECU) - Mk2/3 GT Turbo2, Metal/1Pin - Coolant Temp Sensor (Air-Con) - Mk2/3 GT Turbo & Glanza V3, Grey/3Pin - Coolant Temp Sensor (Dash & ECU) - Glanza V4, Green/1Pin - Coolant Fan Switch - Mk2/3 GT Turbo & Glanza V5, Blue/2Port - Idle Control/Choke Sensor - EP91 UKDM N/A6, Green/2Pin - Coolant Temp Sensor (ECU) - Mk2/3 GT Turbo7, White/1Pin - Coolant Fan Switch - Mk2/3 GT Turbo & Glanza V8, Metal/1Pin - Coolant Temp Sensor (Air-Con) - Mk2/3 GT Turbo & Glanza V9, Metal/1Pin - Coolant Temp Sensor (Dash) - Mk2/3 GT Turbo Be good to try get a wiki entry to try and identify all these... Quote Link to post Share on other sites
bucketep91 Posted May 25, 2015 Share Posted May 25, 2015 (edited) Based on memory (will check later) 9 temp switch8 aircon7 fan switch6 different temp switch (there are 3)5 I've never seen?4 could be another temp switch?3 never seen?2 same as 8?1 don't know Edited May 25, 2015 by bucketep91 Quote Link to post Share on other sites
RobSR Posted May 25, 2015 Share Posted May 25, 2015 Number 5 is off an n/a, two vac lines - one to the charcoal canister the other to the throttle body from memory. Quote Link to post Share on other sites
Socks Posted May 25, 2015 Author Share Posted May 25, 2015 Based on memory (will check later)9 temp switch8 aircon7 fan switch6 different temp switch (there are 3)5 I've never seen?4 could be another temp switch?3 never seen?2 same as 8?1 don't know How certain on the ones you've got are you bucket? 100%? 5 is defo off an NA Rob yes! Duno what it is tho!? Quote Link to post Share on other sites
daniel_g Posted May 25, 2015 Share Posted May 25, 2015 1 & 6 look the same, a CTS from a MK2/3 GT3 is off a 98spec V but unsure what for, its 2 sensors in the 1 iirc Quote Link to post Share on other sites
Socks Posted May 25, 2015 Author Share Posted May 25, 2015 1 & 6 look the same, a CTS from a MK2/3 GT3 is off a 98spec V but unsure what for, its 2 sensors in the 1 iirc You lot are paying attention Coolant Temp Sensor. Defo mk2/3 GT only? Updated List... Quote Link to post Share on other sites
daniel_g Posted May 25, 2015 Share Posted May 25, 2015 You lot are paying attention Coolant Temp Sensor. Defo mk2/3 GT only? Updated List...Also possibly on a 96spec V but ive not owned one to check. Quote Link to post Share on other sites
daniel_g Posted May 25, 2015 Share Posted May 25, 2015 Not had a MK1 either so left it out just incase Quote Link to post Share on other sites
Socks Posted May 25, 2015 Author Share Posted May 25, 2015 Also possibly on a 96spec V but ive not owned one to check. Awesome! Anyone else clued up...? This is NOT an easy task! Quote Link to post Share on other sites
Flaminsam Posted May 25, 2015 Share Posted May 25, 2015 1 is gt coolant temp sensor for ecu.2 is coolant temp sensor for air con/hvac. 3 is glanza Coolant temp sensor incorporating ecu and dashboard. 4 is fan switch for gt/glanza located back of thermostat housing. 5 is idle control for 4efe or choke if you like. 6 is the same as 1 7 is same as 4 (possible different temp fan switch?) 8 is same as 2 9 is gt coolant temp sensor for dash. You can also get blanks for sensors 2/8 if they didn't come with a/c as standard. Hope that helps. Quote Link to post Share on other sites
Socks Posted May 25, 2015 Author Share Posted May 25, 2015 2...Why does the air con system need to know the coolant temp? Quote Link to post Share on other sites
Flaminsam Posted May 25, 2015 Share Posted May 25, 2015 (edited) It's to do with the radiator. The condensor on the front may transfer heat to the radiator and if the engine is overheating the air con will cut out allowing the ram air to cool the radiator. Due to the condensor being in front of the radiator the ram air effectively warms the air going through the condensor and can't cool the radiator effectively. Edited May 25, 2015 by Flaminsam Quote Link to post Share on other sites
bucketep91 Posted May 25, 2015 Share Posted May 25, 2015 7 is defo the fan switch, I recently changed it. My engine was from a mk3 gt8 and 2 are for aircon. Quote Link to post Share on other sites
GP82 Posted June 25, 2018 Share Posted June 25, 2018 Hi I'm looking for the part number for the dash coolant temp sensor for a M3 EP82. It's the one pin sensor no:9 on the list. It sits directly below the ecu temp sensor on the housing. Mine's came apart when i tried removing it. Checked toyodiy for part no with no luck! Or if anyone knows where I can get one. Thanks! Quote Link to post Share on other sites
Starlet__SR Posted July 1, 2018 Share Posted July 1, 2018 Toyota sell them new still. Quote Link to post Share on other sites
danzambrano Posted September 19, 2020 Share Posted September 19, 2020 what's the pin out for the number 3 sensor? which one is ground, ecu, and dash? Quote Link to post Share on other sites
danzambrano Posted September 19, 2020 Share Posted September 19, 2020 (edited) On 5/25/2015 at 8:44 PM, Socks said: Now then my darlings.. Got a big box full of various sensors from 4E-FTE and 4E-FE Engines. From both EP82 and EP91 Cars... Get your knowledge caps on... Whats what here.... From Left to Right... coolant temp sensor for air con/hvac. 1, Green/2Pin - Coolant Temp Sensor (ECU) - Mk2/3 GT Turbo 2, Metal/1Pin - Coolant Temp Sensor (Air-Con) - Mk2/3 GT Turbo & Glanza V 3, Grey/3Pin - Coolant Temp Sensor (Dash & ECU) - Glanza V 4, Green/1Pin - Coolant Fan Switch - Mk2/3 GT Turbo & Glanza V 5, Blue/2Port - Idle Control/Choke Sensor - EP91 UKDM N/A 6, Green/2Pin - Coolant Temp Sensor (ECU) - Mk2/3 GT Turbo 7, White/1Pin - Coolant Fan Switch - Mk2/3 GT Turbo & Glanza V 8, Metal/1Pin - Coolant Temp Sensor (Air-Con) - Mk2/3 GT Turbo & Glanza V 9, Metal/1Pin - Coolant Temp Sensor (Dash) - Mk2/3 GT Turbo Be good to try get a wiki entry to try and identify all these... which one of the 3 pin coolant temp sensor is ground? which one is for the ecu? which one is for the dash? Edited September 19, 2020 by danzambrano Quote Link to post Share on other sites
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