Question about 1992 Toyota Tercel

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92 toyota tercel wont pass smog at 1500 rpm could this be 02 sensor

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  • 315 Answers

It could be you catalytic converter,

Posted on Jul 13, 2013

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Posted on Jan 02, 2017

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csmock132
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SOURCE: car wont pass smog.

Is it running rough? Is the check engine light on?

Posted on May 27, 2009

  • 101 Answers

SOURCE: I HAVE A TOYOTA TERCEL THAT SURGES AT AN IDLE, I

Try replacing that sensor or continue looking for a vacume leak

Posted on Sep 09, 2009

  • 6 Answers

SOURCE: 22r carb dumping fuel at 2500 rpm will not pass

have you checked you fuel pressure regulator as some times as you rev the engine the fuel pressure will over fill the bowl or even simpler your fuel bowl shut valve may need re setting

Posted on Sep 19, 2009

nvannoy
  • 234 Answers

SOURCE: Having a problem passing a smog test on 1996 Toyota 4Runner SR5 V

NOX is produced when cylinder temperatures exceed 2500 deg. The systems in place to reduce NOX are EGR and the catalytic converter.
If the number is only slightly higher than avg then I would suggest the EGR, make sure that any vacuum lines are attached and that the diaphragm moves freely, be sure not to damage the rubber inside the EGR.
Retake smog test, if numbers still out of range replace the cat.

Posted on Jan 12, 2010

  • 125 Answers

SOURCE: need 92 toyota paseo to

High HC means moisture in the system. Try driving it longer then take it to the smog shop. Otherwise it could be hard like a head gasket or easy such as a PCV not functioning. Any ways you should always drive it about 20 miles before smog check, longer when the weather is cold.

Posted on Dec 01, 2010

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1 Answer

93 toyota tercel failed smog due to high hc. Passed all other co and no ppm. PLease help


Toyota had a drivability kit which replaced carb and vaccume
lines,but I would put a weber carb on it they have a great kit
32/36 dgv progressive two barrel carb runs much better
oringinal carb had problems from start.

Jun 14, 2015 | 1993 Toyota Tercel

1 Answer

I have a 92 toyota paseo with auto trans it runs fine cold after it warms up its sluggish, idle goes up and down, it wont pass smog due to double the hydrocarbons


check for a vacuum leak. open the hood, you should be able to hear a hissing sound. track down that sound and repair it.

Nov 03, 2009 | 1992 Toyota Paseo

1 Answer

Car wont pass smog.


Is it running rough? Is the check engine light on?

May 27, 2009 | 1991 Toyota Camry

1 Answer

Prerunner wont pass smog due to engine service light


Not positive on this so consider only. The o2 sensor is what actually tells everything else what is going on with emmission and everything else adjusts to what info it relays. The o2 is also subjected to extreme temps and cooling cycles. So, instead of spending money on no answer diagnostism give replacement of o3 sensor so consideratio. If you choose to replace, wd40 and let exhaust cool down. Good Luck.

May 07, 2009 | 2000 Toyota Tacoma PreRunner

1 Answer

Prerunner wont pass smog due to engine service light


Try this:-
Theres a vaccum pipe tht fits on the brakes booster just under the mastercylinder probabely it may have popped out or the sensor could be faulty ....worth a try ;)

May 07, 2009 | 1991 Toyota Pickup

1 Answer

Engine rough idle cold. passes smog once temp reaches thermostat


you can take apart the top section and blow out the small passage that's bellow the throttle plate.

May 01, 2009 | 1987 Toyota Tercel Liftback

1 Answer

92 chevy truck 5.7 idle revs up and down high emissions


sounds like a vacuum leak check hoses and manifold

Mar 21, 2009 | 1991 GMC K2500

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