Problems with my 91TT

05-19-2005, 10:56 PM

Greetings.
I have a '91 Supra turbo with a 5 speed manual. Car has been bulletproof until recently. Has 78k miles on it and this past week the orange check engine light has been coming on intermittently. Car is box-stock down to the stereo, aside from a K&N air filter. any sugestions on where to start looking for trouble?
Thanks
AR

KingDiamond · 05-19-2005, 11:10 PM

you can go to your local auto parts store, and get a little module that will hook into your diagnostic connector, and it will start flashing your engine code, it will flash so many times, then pause and then flash so many times again, you wanna count each set of flashes. like if it flashes twice, then pauses then flashes 5 times, then that would be code 25, and you will then be able to look up that code in the book that should come with the module. Or you can find out how to pull codes manually using a jumper wire, this will also make your check engine light flash (displaying your code). The module isn't that expensive and something you can use over and over again, plus you'll get the book with the codes in it. If you opt to do the manual code pulling, and can't find out what the code means, let me know i think i have a book at home.

05-19-2005, 11:24 PM

Thanks KD(big fan btw) gonna have to head to town to get one.

05-20-2005, 02:00 AM

Paid $40 for a jumper and a code book but I got the answer:
22: Bad water temperature sensor and/or switch(s).

KingDiamond · 05-20-2005, 12:23 PM

now depending on how much the sensor is, you can either test it, and see if that actuallly is the problem, or you can just replace it.

06-25-2005, 08:54 PM

there are 2 small aux fans on the drivers side that were not connected, so I connected them, problem not solved. turned on the AC and the fans run, so not sure it's the switch. teperature gauge works, looks like there is more than one sensor. have a Haynes ordered so I can start diagnosis.
Champion lists a sending unit for $21 but my local nap seems to think its a sensor for the computer which controls the fan and it is considerably more than the sending unit. so car is sitting in my driveway while I drive my gutless EESOOZOO.

anyone ever hear what sounds like water running in the glovebox? its the damdest thing.

KingDiamond · 06-26-2005, 01:01 AM

could just be air in your cooling system, also you might want to check for signs of a blown head gasket, loosing coolant, oil coolant mix, blowing white smoke after car warms up.

monkihead · 06-26-2005, 01:06 AM

i'd place a bet on the sensor. they're more likely to go out.

KingDiamond · 06-26-2005, 01:02 PM

just so your not confused my reply above was for the question in regards to the running water in the dash.

06-26-2005, 01:06 AM	#8
monkihead SP58GT Join Date: Mar 2005 Location: San Antonio texas Posts: 646	i'd place a bet on the sensor. they're more likely to go out. __________________ ....all you need is a small taste of success and you will find it suits you.... monique- better off dead

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
problems problems problems....	86SupraMan	MKIII Supra	5	02-04-2008 04:28 PM
Starting problems and accleration problems!	alekjame22	MKIII Supra	6	03-17-2007 11:19 PM
Oil leak problems	adellicson	MKIII Supra	1	03-04-2007 10:11 PM
problems, problems, and problems	tone loc	MKIII Supra	6	09-06-2006 04:35 AM
Distributor problems?	ekoston69	MKIII Supra	1	02-02-2006 11:29 PM

05-19-2005, 10:56 PM	#1
Guest Guest Posts: n/a	Greetings. I have a '91 Supra turbo with a 5 speed manual. Car has been bulletproof until recently. Has 78k miles on it and this past week the orange check engine light has been coming on intermittently. Car is box-stock down to the stereo, aside from a K&N air filter. any sugestions on where to start looking for trouble? Thanks AR

05-19-2005, 11:10 PM	#2
KingDiamond 12psi boost Join Date: Apr 2005 Location: West Milford, NJ Posts: 357	you can go to your local auto parts store, and get a little module that will hook into your diagnostic connector, and it will start flashing your engine code, it will flash so many times, then pause and then flash so many times again, you wanna count each set of flashes. like if it flashes twice, then pauses then flashes 5 times, then that would be code 25, and you will then be able to look up that code in the book that should come with the module. Or you can find out how to pull codes manually using a jumper wire, this will also make your check engine light flash (displaying your code). The module isn't that expensive and something you can use over and over again, plus you'll get the book with the codes in it. If you opt to do the manual code pulling, and can't find out what the code means, let me know i think i have a book at home.

05-19-2005, 11:24 PM	#3
Guest Guest Posts: n/a	Thanks KD(big fan btw) gonna have to head to town to get one.

05-20-2005, 02:00 AM	#4
Guest Guest Posts: n/a	Paid $40 for a jumper and a code book but I got the answer: 22: Bad water temperature sensor and/or switch(s).

05-20-2005, 12:23 PM	#5
KingDiamond 12psi boost Join Date: Apr 2005 Location: West Milford, NJ Posts: 357	now depending on how much the sensor is, you can either test it, and see if that actuallly is the problem, or you can just replace it.

06-25-2005, 08:54 PM	#6
Guest Guest Posts: n/a	there are 2 small aux fans on the drivers side that were not connected, so I connected them, problem not solved. turned on the AC and the fans run, so not sure it's the switch. teperature gauge works, looks like there is more than one sensor. have a Haynes ordered so I can start diagnosis. Champion lists a sending unit for $21 but my local nap seems to think its a sensor for the computer which controls the fan and it is considerably more than the sending unit. so car is sitting in my driveway while I drive my gutless EESOOZOO. anyone ever hear what sounds like water running in the glovebox? its the damdest thing.

06-26-2005, 01:01 AM	#7
KingDiamond 12psi boost Join Date: Apr 2005 Location: West Milford, NJ Posts: 357	could just be air in your cooling system, also you might want to check for signs of a blown head gasket, loosing coolant, oil coolant mix, blowing white smoke after car warms up.

06-26-2005, 01:02 PM	#9
KingDiamond 12psi boost Join Date: Apr 2005 Location: West Milford, NJ Posts: 357	just so your not confused my reply above was for the question in regards to the running water in the dash.