usefull repair info - Toyota Celica Forum
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post #1 of 6 (permalink) Old 08-02-2009, 12:50 AM Thread Starter
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This is a place to list helpfull repair tricks that you have learned. please do not post in this topic if you need help, start a new topic in the repair or corect gen fourm and some one will help you or you can pm me if no one replies.


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post #2 of 6 (permalink) Old 08-02-2009, 12:56 AM Thread Starter
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i found this some time ago, i hope it helps some of you. also removing both of your bettery cables and tuching them togeather for a few sec may work the same as this reset, make sure that both of your batt cablea are removed from tha batt and keep them removed when holding them togeather, you do not want power when tuching the cables. the purpose of this is to drain the reserve power from the ECU to reseat it.


(Resetting your Air/Fuel Mixture Ratio
Original Author: mkbak Approximate Time: 10-15 minutes Required Tools: Needlenose pliers If you've noticed lately that your car has been running awkward or idling at very low rpms or even idling roughly, then your ECU may need to be reset. It is also a good idea to reset your ECU if you've added any performance mods like a header, intake, exhaust, etc. Doing this will let you take full advantage of your mods and reset your air/fuel mixture ratio so that you can get better performance.

Here's how to reset your ECU. First, start your car and let it warm up. When it's reached it normal operating temperature, turn the car off. Then, pop the hood and remove the relay fuse box cover and remove the following fuses: the Hazard fuse, the EFI fuse, and the ECU fuse. Take them out and leave them sit out for 1 minute. Then when the minute is up, put the fuses back in and start up your car. At this time the ECU is being reset so you can take advantage of your mods and get better gas mileage. When you start it up, let it run for exactly 10 minutes, then turn your car off. then start it again and you may notice your car idles better. From that point on you may have better gas mileage and your mods will be put to use.

Please note that this may not solve any problems, but it cannot hurt.
http://www.6gc.net/howto/reset_your_air_fuel_ratio )




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post #3 of 6 (permalink) Old 08-04-2009, 11:48 PM Thread Starter
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Here is how to check your "check engine light". i will try to add some pics soon.

first get a Chilton repair manual if you don't already have one. to display the diagnostic codes first turn the ignition switch to on, but don't start the car. then use a jumper wire to bridge terminals TE1 and E1 of the service connector located on the left side of the engine compartment by the hood hinge(see pic). then read the diagnosis code as indicated by the number of flashes of the "check engine" light on the dash. normal system operation is indicated by code No 1 (no malfunctions). the check engine light displays a code No 1 by blinking once every few seconds.



for all but 2s-e models, 86-93, maybe newer models too.

trouble codes circuit or system
code 1 normal
1 flash, pause, 1 flash

code 12
1 flash, pause, 2 flashes rpm signal


code 13
1 flash, pause, 3 flashes rpm signal


code 14
1 flash, pause, 4 flashes ignition signal


code 21
2 flashes, pause, 1 flashes oxygen sensor


code 22
2 flashes, pause, 2 flashes coolant temp sensor circuit


code 24
2 flashes, pause, 4 flashes intake air temp sensor


code 25
2 flashes, pause, 5 flashes air/fuel ratio lean malfunction



code 26
2 flashes, pause, 6 flashes air/fuel ratio rich malfunction


code 27
2 flashes, pause, 7 flashes sub-oxygen sensor


code 31
3 flashes, pause, 1 flashes vacuum sensor


code 31 or 32
3 flashes, pause, 1 or 2 flashes air flow meter


code 41
4 flashes, pause, 1 flash throttle position sensor

code 42
4 flashes, pause, 2 flashes vehicle speed sensor

code 43
4 flashes, pause, 3 flashes starter signal

code 51
5 flashes, pause, 1 flash a/c switch signal


code 71
7 flashes, pause, 1 flash egr


in order to reset the check engine light you can pull out the EFI 15A fuse for a couple of minutes and it will reset.


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post #4 of 6 (permalink) Old 11-02-2010, 10:04 AM
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Will this cover 2000 GT models? I need to find out what codes I have, and I cannot find anything that covers the 2000 GT 1ZZ.

Thanks



QUOTE (jaydog82 @ Aug 4 2009, 10:48 PM)
Quote:
Here is how to check your "check engine light". i will try to add some pics soon.

first get a Chilton repair manual if you don't already have one. to display the diagnostic codes first turn the ignition switch to on, but don't start the car. then use a jumper wire to bridge terminals TE1 and E1 of the service connector located on the left side of the engine compartment by the hood hinge(see pic). then read the diagnosis code as indicated by the number of flashes of the "check engine" light on the dash. normal system operation is indicated by code No 1 (no malfunctions). the check engine light displays a code No 1 by blinking once every few seconds.



for all but 2s-e models, 86-93, maybe newer models too.

trouble codes circuit or system
code 1 normal
1 flash, pause, 1 flash

code 12
1 flash, pause, 2 flashes rpm signal


code 13
1 flash, pause, 3 flashes rpm signal


code 14
1 flash, pause, 4 flashes ignition signal


code 21
2 flashes, pause, 1 flashes oxygen sensor


code 22
2 flashes, pause, 2 flashes coolant temp sensor circuit


code 24
2 flashes, pause, 4 flashes intake air temp sensor


code 25
2 flashes, pause, 5 flashes air/fuel ratio lean malfunction



code 26
2 flashes, pause, 6 flashes air/fuel ratio rich malfunction


code 27
2 flashes, pause, 7 flashes sub-oxygen sensor


code 31
3 flashes, pause, 1 flashes vacuum sensor


code 31 or 32
3 flashes, pause, 1 or 2 flashes air flow meter


code 41
4 flashes, pause, 1 flash throttle position sensor

code 42
4 flashes, pause, 2 flashes vehicle speed sensor

code 43
4 flashes, pause, 3 flashes starter signal

code 51
5 flashes, pause, 1 flash a/c switch signal


code 71
7 flashes, pause, 1 flash egr


in order to reset the check engine light you can pull out the EFI 15A fuse for a couple of minutes and it will reset.[/B]
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post #5 of 6 (permalink) Old 03-27-2012, 04:25 PM
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thanks for the tips man, I used this to reset my air bag light lol

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post #6 of 6 (permalink) Old 01-27-2015, 05:22 PM
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were would i get sils for a st182 ?????????/
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