Question about 1992 Toyota Pickup
I help people out with toyota problems and i am good with toyotas, but i will tell you i have the same problem with my truck and i have a 91 V6, there is nothing wrong with your truck, what i ahve come to find out thats its not really a problem but more of a short some where, i cant find mine, but if your check engine like comes on like you say and stays on and will turn off when you turn the truck off and come on again when you do the same thing you were doing then we both have the same problem, there is no code for it, but really man, dont sweat the same things.
Posted on May 15, 2009
What is the code
Posted on Mar 10, 2009
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Posted on Jan 02, 2017
On the bottom right side of the throttle body toward the firewall, is the Idle air control valve. Sometimes this gets carbon build up that interferes with the stepper motor. You can unplug it and remove the valve (it unscrews with a 27mm or 25mm wrench; or the medium crescent will work). Once you have it out use a mirror to look into the bore it came out of. If it is plugged or heavy with carbon you can clean it with healthy dose of throttle body cleaner... If it is really bad you can use a bore brush to loosen up the heavy stuff and flush with generous amounts of throttle cleaner.
Check all your vacuum lines since your there. replace the old brittle stuff. Check and make sure the TBI unit is snug and not loose, look for signs of bad gasket material around the base.
Spray the TBI throat and clean the butterfly. You can use a old toothbrush to loosen up the build up and prevent you from using a whole can of cleaner.
Went you have everything reassembled, be aware that it may stumble a little on start up. It has to burn off all that throttle body cleaner.
After is it idling, you can clean the TBI throat by spraying the cleaner down into the throttle while manipulating the throttle to keep the engine running. (do not over rev the engine)
If the condition continues, there is a procedure to check the IAC. It is fairly cheap at most discount part stores. ($35 to $45)
Posted on Jun 01, 2009
remove the passenger side of your dash "the glove box" there is a circuit opening relay tucked up behind the speaker it's small box. it reseavs signal from efi and maf then sends power to your pump. good luck...peace and love for all...
Posted on May 29, 2010
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