Question about 1992 Toyota Camry V6

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1992 computer rich mixture idling high

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Idle mixture sensor is faulty

Posted on Apr 15, 2014


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Posted on Jan 02, 2017

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SOURCE: idle is rough and rich after warming up 1986 toyota 4wdwagon 3 ac

sounds like you are not geting the right amount of air to fuel system.Have you checked the air filter is clean.Change the air flow senser if it is clean.Good luck!!

Posted on Jul 07, 2009

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SOURCE: 1992 4Runner circuit opener relay causing rich Idle

It may be that the O2 sensor is faulty or contaminated. Another possibility is that after running rich for some time, the catalytic converter is slagged and no longer working properly. Have you been able to get any diagnostic codes from the car's computer? Is the check engine light on?

Posted on Jul 27, 2009

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SOURCE: Gas mixture

loose nut behind the wheel any ideas

Posted on Mar 01, 2012

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How do I correct high idle problem

Year/make/model??? Applying vacuum to the EGR and making the valve open will not be the correction. Once opened, this valve allows unburned exhaust gas back into the combustion chamber resulting in a rich mixture. The computer sees this rich mixture and reduces the injector pulse allowing the idle to slightly lower. If the vehicle were at proper idle speed and this valve is opened, it would run rough snd possibly stall

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1991 Toyota Camry running rich after cleaning the throttle body and replaced the throttle positioning sensor. Checked for vacumm leaks but cant find any

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Toyota Camry running rich Questions & Answers - Fixya > Forum > Tags > running rich > Cars & Trucks > Toyota
... running rich I have a 1991 Camry that is running rich. I just replaced the O2 sensor and a new cat, oil change, new spark plugs. The car wont pass smog. it is ...

1992 Toyota Camry XLE V6 Excessive Running Rich ...

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1992 Toyota Camry XLE V6 Excessive Running Rich ... 1997Toyota Camry V6 forward Oxygen (O2) Sensors .

Jan 11, 2016 | Toyota Cars & Trucks

1 Answer

88 olds cutlass ciera international getting error code 45 cant find it in the book

Code 45 is for a rich O2 sensor. If you have already changed the sensor, the fuel mixture may actually be rich.
Possible causes include a leaking fuel injector, faulty fuel pressure regulator, or other problems.

Apr 14, 2013 | 1992 Oldsmobile Cutlass Ciera

1 Answer

91 5.2 RUNS RICH

Is the check engine light on ?
High idle speed could be a vac leak or a problem with the throttle body.
Its possible the same vac leak is causing the rich mixture if the map sensor is reading correctly. The computer would think you were accelerating.

Jul 06, 2012 | 1991 Dodge Dakota

2 Answers

Car starts & runs ok when cold , starts to run poorly as it warms up. I have replaced the coils, fuel pressure reg,plugs, wires,&fuel purge valve

The first thing I would do is check the compression of each cylinder. When the engine first starts, the computer runs it at high idle and rich fuel mixture. This tends to mask mechanical problems within the engine that may be preventing it from running smoothly at a lower idle speed and leaner mixture. If the compression is good, then it is likely that you have a vacuum leak or faulty injector that is causing your rough idle.

Jan 10, 2011 | 2000 Buick Park Avenue

1 Answer

The idle jumps when engine is cold from 1000 to 2500 rpms and starts really rough requires pushin gas petal to start

Being efi (electronic fuel injection) the idle should be higher when starting off the older days, you used to use a choke, a handheld lever that you pulled out to shut off the air to result in a rich mixture...due to cold air there is alot of oxygen molecules, so a choke increases the fuewl mixture to compensate aiming for that 14.7:1 air to fuel mixture ratio

BUT it should not be that high, what is happening is that is dumping too much fuel in and you are having to go WOT (wide open throttle) to prevent a "flooded" condition..

Why ???? Well, it could be a faulty air flow sensor, a faulty or out of adjustment idle control, bad fuel, bad air filter, fuel filter, fuel injectors bad....etc etc

So, more info is required to solve it......when was the car last serviced, and does it only occur when cold, or do you notice that it is hard to start when hot as well.

Sep 27, 2010 | 1992 Honda Prelude

1 Answer

Major hesitation at cold idle, car accelerates at a slow pace, hesitation also appears when in passing gear. replaced fuel filter 2 months ago

symtoms of a bad coolant sensor: poor car idle, rich mixture, retarded timing, slow idle speed, cold hesitation or stumble, poor fuel milage, check and make sure air filter is clean. and check plugs and wires if need be,

May 02, 2010 | 1992 Honda Accord

2 Answers

Stalls while driving. no good reason from

you need to have the engine coolant switch checked,since the computer relies solely on sensors,the ect tells the computer how cold or hot it is so the computer will make it a rich or lean mixture to start the engine,if it tells the computer that it is 75 degrees the computer will lean the mixture like starting a car in the winter without a choke.

Jan 03, 2010 | 1992 Subaru Legacy

1 Answer

1992 4Runner circuit opener relay causing rich Idle

It may be that the O2 sensor is faulty or contaminated. Another possibility is that after running rich for some time, the catalytic converter is slagged and no longer working properly. Have you been able to get any diagnostic codes from the car's computer? Is the check engine light on?

Jul 19, 2009 | 1992 Toyota 4Runner

1 Answer


If CO is high, the mixture is rich. I hope this can help you. Not sure if you made any changes to your engine or exhaust. That can infuence the way your engine run, as to lean or rich. I hope this will help you.

Apr 07, 2009 | 1991 Pontiac Firebird

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