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How do I adjust idle on 2009 Toyota Corolla 1.8 liter

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  • Toyota Master
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There are no provisions for adjusting the idle . The computer through the use of the IAC valve - idle air control controls the idle . There is a base idle set at the factory an should not be changed or messed with . What idle problem are you having ? low or high Could be IAC valve or air passages plugged . High idle the throttle plate could be gummed up an sticking ! If you were to change the base idle you cause check engine light problems .
How To Fix Car That Idles Poorly

Posted on Apr 20, 2017

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  • Toyota Master
  • 1,932 Answers

The car's ECU controls the idle thru the Idle Air Control valve, driven by a small stepper motor. On that motor it is common for the IAC to become gummed up, so the motor can't move it correctly. It is a simple repair which any mechanic should know about.

Posted on Apr 21, 2017

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6 Suggested Answers

6ya6ya
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starlet4life
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SOURCE: Adjust valve clearances 1987 toyota corolla

Im assuming its an 4AGE!?
http://www.ae92gts.com/ae92gts_valve_adj.html
And here one of my favorites...;)
http://www.billzilla.org/4agstock.htm

Posted on Oct 07, 2008

  • 1861 Answers

SOURCE: where is the oil filter on the 2009 Toyota corolla

I assume that you have a 1.8 engine. The oil filter is in a round metal housing under the engine; you have to remove the housing to access the cartridge type oil filter; the 1.8s do not have a "spin-on" filter.

Posted on Oct 11, 2008

  • 14 Answers

SOURCE: need to know type of oil filter wrench for a corolla 2009

fl 110

Posted on Aug 26, 2009

SOURCE: Toyota 1999 Corolla,low idle,my corolla idles at

adjust the accelerator cable.

Posted on Mar 15, 2010

Testimonial: "i thought the idle was ecu controlled,but i see what your saying,ajust cable stop.ie allen screw with locknut to bring up revs.thanks"

jebild
  • 178 Answers

SOURCE: How to adjust valves on 94 toyota pu 2.4 liter

Link to a factory manual here:
http://myweb.dal.ca/is353832/93fsm/maintenance/2maint.pdf

You might as well inspect/replace the PCV valve while you're there.

Posted on Jul 31, 2010

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Engine will idle too low and at times will stall with AC on when coming to a stop. Lately it idled too high @ 2300 RPM is there an adjustment. To get it to idle down I removed the rubber stop behind the...


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