Question about Toyota Starlet

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Revving problem IT IDLES FINE BUT WHEN I GAS IT IT REVS UP THEN DROPS DOWN BY ITSELF AND KEEPS DOING IT EVEN WHEN MY FOOTS TO THE FLOOR ON THE THROTTLE

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  • Toyota Master
  • 5,280 Answers

Check the fuel pressure. Could also be clogged injectors-assuming it is fuel injected-you didn't say what year. Also check for a big air or vacuum leak.

Posted on Feb 13, 2014

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6ya6ya
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Posted on Jan 02, 2017

  • 37 Answers

SOURCE: 99' Durango 5.2L - Wont Idle

TRY DOING A RELEARN AGAIN IF OCCURS AGAIN PCM IS LOSING ITS LEARNED MEMORY POSSIBLE PCM MALFUNCTION OR STUCK IAC

Posted on Apr 06, 2009

emissionwiz
  • 75822 Answers

SOURCE: IDLE PROBLEM

Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Apr 14, 2009

glamarre82
  • 140 Answers

SOURCE: car wont hold an idle and shuts off after u start

Have your idle air control valve and throttle position sensor and mass airflow sensor checked

Posted on Jul 19, 2009

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