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My 1993 toyota tercel manual transmission is running too rich and didn't pass the smog inspection. It also accelerates on its own while in idle. how do I fix it?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Brian032472
  • 150 Answers

SOURCE: engine won't idle

problem sounds like IAC (idle air control) or EGR (exhaust gas recirculation) Is there a check engine (MIL) light on with rhe issue. I just replaced an EGR valve on a camry this weekend with the same issue.

Posted on Nov 02, 2008

yotaguy
  • 232 Answers

SOURCE: 1985 toyota pickup.22r,automatic trans,2 barrel

There ar two thermo vacuum switches on the intake manifold,one in the center top by the EGR pipe right next to the valve cover,and one center bottom on the outside right below the carburator,it may be that one of them is not fully opening/closing when the motor is cold.I'm not sure on this as I've never had this problem with my 22R's,hopefully this will point you in the right direction,if you want comment back and I'll research this further(it's 5 in the morn and I cant access my 22r manual)

Posted on May 01, 2009

  • 125 Answers

SOURCE: 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.

Posted on May 01, 2009

  • 2039 Answers

SOURCE: 1993 Toyota Tercel oil

yes no problem thse engine comsume oil a lot 10w30 is ticker then 5w30 so it will take less oil .pierre

Posted on Aug 07, 2009

morse008
  • 1111 Answers

SOURCE: 1994 toyota tercel running rich

have you a vacuum leak does it seem to run higher rpm and did you make sure to remove all the old gasket material and not gouge the block in which it rests upon are all the vacuum lines correctly done and in order in which removed ?

Posted on Sep 06, 2009

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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
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I have a squeeling belt on my 1993 Toyota Tercel/manual transmission. It occurs at the beginning of the day when I first start the car or towards the end of the day when it starts to cool down outside(not...


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


Try replacing that sensor or continue looking for a vacume leak

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Engine rough idle cold. passes smog once temp reaches thermostat


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1994 Toyota Tercel idle


Mine did the same thing. Try adjusting the idle. But if you adjust it too much it may run rich

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1991 Camry running rich


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