Question about 1992 Toyota Pickup

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I have a 1992 Toyota 4x4 pickup 3.0L v6 3vze. I've had it for a short time the check engine light keeps coming on, I've had it looked at and tested a few times it seems to come on when I'm driving at high speeds on the highway. I need help i don't want to keep getting it tested and getting the same answer of ''well theres a list of thing it could be'' can anyone give me a better answer then that or point me in the right direction. thanks for any help.

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  • whiterabbits Mar 13, 2009

    I don't know sorry, I was never told, but the first time it was tested i was told it could be the oxygen sensor, Valves are too tight and or a blown head gasket. i was told they thought it was the valves and it was going to be $240. the oxygen sensor was replaced 12/08 so I don't think its that but, i also just had to get the power steering pump replaced there was also a new one put in at the same time as the O2 sensor so i really don't know what to do. the other time i got it tested i was told it could be even more things like an air leak lol I'd hate to just start going down the list of things it could be and hoping i find it sooner then later. is there any good websites that mite help me. is it easy to check and change the air filter any help would be greatly appreciated . thanks



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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

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What is the code

Posted on Mar 10, 2009


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Posted on Jan 02, 2017

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SOURCE: low idle on my 1992 gmc pickup with 4.3 v6

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

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SOURCE: 1990 4x4 v6 pickup flash code 4 2 5 1

get the injectors checked

Posted on Jul 08, 2009

  • 1 Answer

SOURCE: 3vze v6 engine no power to fuel pump can only

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

  • 1 Answer

SOURCE: 91 4runner 3vze V6 Cranks wont start, replaced

check cranck and cam sensors

Posted on Aug 23, 2010

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