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1 UZ-FE performance upgrade w Temp Sensor replacement?

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Old 10-05-11, 07:48 PM   #76
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the radiator sensor is to control your fans. the two sensors near left side front of engine are for the temp for the ecu and the cluster gage. factory one they are speaking of in this thread is the large plug with green top. smaller one behind that is the one with one wire to the temp gage in your instrument cluster.

i have a bad o2 that i will be replacing this weekend. have them right here "denso's". only getting code 21 for the main left one. but will replace both. thinking i will also replace this sensor spoken of in this thread along with the 2 main o2's.
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Last edited by SkulCracka; 10-05-11 at 07:52 PM..
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Old 10-07-11, 05:43 AM   #77
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my 1992 sc 300 shuts down after driven 5-6 miles; won't re-start. I wait 3 or more hours; car re-starts. I drive again; the cycle begains again
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Old 10-07-11, 05:50 AM   #78
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I drive 5-6 miles; car shuts down, won't re-start. I wait 3 or more hours, car starts, i drive 5-6 miles car shuts. I replace the fuel filter; same thing. I thinking of re-placing the crankshaft sensor. HELP !
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Old 10-07-11, 08:34 AM   #79
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Fuel pump ecu most likely^^
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Old 07-16-13, 01:50 PM   #80
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Very interesting points I must try this this weekend
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Old 06-18-14, 01:01 AM   #81
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I haven't seen it mentioned; has anyone tried simply cleaning their OEM sensor? Corroded copper shouldn't be that tough to clean up, but I don't know how delicate the sensor itself is. If the quality of the aftermarket sensors is in question, as it seems to be, salvaging the OEM one would be worth a shot.

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So I just did this today. Bought the OEM replacement from autozone. It wasn't too bad getting it out. Putting everything back together was painful.

My car is from 1996 and has about 122K miles on it. Garage-kept most of its life too. So after installing it, all I can say is wow. There is such an improvement in the entire rpm range. I can feel the biggest difference at low and mid rpm. The high end seems about the same.

I highly suggest everyone to at least check the condition of theirs. I am very happy with this.
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Old 07-08-14, 11:37 PM   #82
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Quote:
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I haven't seen it mentioned; has anyone tried simply cleaning their OEM sensor? Corroded copper shouldn't be that tough to clean up, but I don't know how delicate the sensor itself is. If the quality of the aftermarket sensors is in question, as it seems to be, salvaging the OEM one would be worth a shot.
OEM toyota sensors are 40 bucks shipped on ebay. i'll be ordering one tomorrow and change it out. my cars got a quarter million miles almost so why the hell not. and my 0-60 time is 8.5 seconds. should be 7 according to lexus
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Old 07-09-14, 12:40 AM   #83
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I ended up finding other threads saying it's perfectly fine to just clean the sensor. However, when I took mine out, it had already been cleaned quite recently. Worse, the sensor was all busted up from the monkey that wrenched on it, with a broken plastic base, broken connector clip, and bare wire. So, I bought a new one, after all, and ordered a new pigtail connector which I haven't installed yet. I didn't notice any changes with replacing just the sensor.
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Old 07-09-14, 12:42 PM   #84
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Quote:
Originally Posted by t2d2 View Post
I ended up finding other threads saying it's perfectly fine to just clean the sensor. However, when I took mine out, it had already been cleaned quite recently. Worse, the sensor was all busted up from the monkey that wrenched on it, with a broken plastic base, broken connector clip, and bare wire. So, I bought a new one, after all, and ordered a new pigtail connector which I haven't installed yet. I didn't notice any changes with replacing just the sensor.
same here , very clean but replaced it anyway
didn't notice any difference at all
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Old 07-09-14, 04:28 PM   #85
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how many miles do both of your cars have? i ordered my sensor today on ebay for 42 bucks because at the dealerships they were 90 bucks!
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Old 07-09-14, 06:09 PM   #86
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Mine's got 189,000 miles. I went with a Beck Arnley sensor (#158-0421), which you can get for $15 or less. It's probably off the same assembly line as the OEM part.
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Old 07-10-14, 12:41 AM   #87
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OEM sensor is shipped. i'll be posting up results when i install it and run some 0-60 runs.
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A/T Solenoid Bypass, TT Auto Diff, MKIV LCAs,
4300k HIDs, IS300 Steering wheel,
Cobra R Reps 17x9 DZ102 225,45,
hopefully a 5 speed swap in the near future Build Here
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Old 07-10-14, 01:46 PM   #88
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Quote:
Originally Posted by oldManTan View Post
how many miles do both of your cars have? i ordered my sensor today on ebay for 42 bucks because at the dealerships they were 90 bucks!
150K KM or 93K miles
the sensor itself looked very clean but i could see on the brittle plastic that it must have been in there a long time , guess factory
cheap fix for around 18 USD here in Europe , just go for it Oldmantan its a preventing tune up you know it won;t go bad for years to come
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Old 07-13-14, 02:29 PM   #89
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changed mine today, about to go to work and see how it feels. reset the ECU as well. the old sensor looked awful
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Megan Racing EZ Street Coilovers, TechnaFit SS lines, Blue TT Calipers,
A/T Solenoid Bypass, TT Auto Diff, MKIV LCAs,
4300k HIDs, IS300 Steering wheel,
Cobra R Reps 17x9 DZ102 225,45,
hopefully a 5 speed swap in the near future Build Here
Custom Headlights Build
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Old 07-13-14, 02:29 PM
 
 
 
 
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1992, 1998, 400, coolant, duralast, ecu, lexus, location, ls, performance, plug, sc400, sensor, spark, temperature, wires

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