j stuff

iTrader: (5)

Hi all,

Im going to replace the TPS and i found oem part number 89452-22090 on ebay for about 69 shipped.

I also found a non oem replacement at autozone I can pick up locally, with a warranty for 85. Brand is Duralast.

Anyone know if there will be a problem when purchasing a non oem tps?

LiCelsior

iTrader: (32)

is urs a 90-94?

i got one off a 92 for $35 shipped. also i dont know if i got back to you on the trunk mat but its missing that piece :\

j stuff

iTrader: (5)

mine is a 1994. No problem about the trunk mat thanks though!

LiCelsior

iTrader: (32)

yea i forgot if i replied to u or not.

let me know if u interested in the working one from the 92..

Bill Dowd

THE Throttle Positioning Sensor is that the motor that sits in front of the throttle body and cost about $750.00 at the dealers

williamb82

the autozone one should be a genuine toyota part. id get it new from autozone. every supra tps ive bought has just been a repackaged nippondenso part with a toyota stamp on it.

Bill Dowd

thanks for the info mine is about to die with 339,000 miles on it

williamb82

btw, tps is a sensor, not a motor. only thing i can think of that you might be talking about is for the traction control. it has a stepper motor i beleive for the 2nd butterfly. i havent examined one personally but i would assume stepper motor as i dont picture them using a solinoid for that function.

LiCelsior

iTrader: (32)

the one in front of the intake manifold is the idle air control valve. the TPS is here, http://www.lexls.com/tutorials/EFI/tps.html.

j stuff

iTrader: (5)

You are correct, I got the sensor yesterday and even though it was listed as DURALAST brand, it is an actual toyota part when he brought it out from the back.

Now the problem is to get these hoses out of the way so i can work on removing it but EVERYTHING is brittle. And the screws holding the TPS in looked like fossilized bone.

sam12345

iTrader: (1)

What actually fails on the TPS? Is it a resistive strip inside? can you just spray some contact cleaner?

williamb82

the failed tps's ive taken apart the trace on the board has had cracks in it and in 1 case the trace peeled up from the board on both sides of the crack. its just basically a potentiometer. the shafted part has a contact on the trace on the board. eventually the trace/contact pad wear out.

98LS

I see that the tutorial is for a 90-94 LS. Does the 98-00 engine have the same type of sensor?

PureDrifter

iTrader: (10)

no. 98-00 is drive-by-wire, and uses a completely different throttle assy.

98LS

Thanks PureDrifter. Since it is drive by wire, I would assume there is no way to manually adjust the idle, correct?