Question about 1993 Honda Accord

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My 93 honda accord is idling up and down, up and down. what could this be?

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  • Master
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It is either the throttle position sensor (TPS) or the idle air control (IAC)-either is fairly inexpensive, easy to replace and most probably the cause for your erratic idle.

Posted on Mar 23, 2011

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  • Honda Master
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This is caused by a number of things, but one is more common, that is a dirty automatic Idle speed control system. Clean it as outlined below.

To correct this problem get a can of throttle valve cleaner (it is made by CRC) from the local auto parts store, spray it into the air intake of the engine until you have used about half the can, you will need to hold the idle up while you do this, it will try to stall, after this shut the engine down and disconnect the Negative (-) battery cable for 5 minutes. The intake is now clean, if you continue to have the idle speeds problems you may need to seek the help of a professional.

Posted on Mar 23, 2011

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Posted on Jan 02, 2017

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SOURCE: reset transmission speed sensor 93 honda accord

I have been looking for help with the VSS on 88 prelude. Found this page,maybe it will help you.

.http://techauto.awardspace.com/vss.html

Posted on Aug 10, 2009

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SOURCE: idle lopping on 1992 honda Accord

its called a honda rev. its very easy to fix too. ok look at the intake manifold and there is a circular looking pipe coming up. unbolt one of the two screws all the way and the other one just enought to turn the top. once you get the top turned stick your finger in there its almost like a vaccuum and turn clock wise untill it stops and your done. it is only two phillips head screws and its sitting right on the intake manifold in the front of it

Posted on Feb 26, 2010

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emissionwiz
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SOURCE: my 93 honda accord has a problem with idleing the

do the procedure below.

, I want you to get a can of intake cleaner (ABOUT $5.00) from any local auto parts store like NAPA or Carquest, do not use carburetor spray, intake cleaner only or u will damage the Teflon coating inside the throttle valve and air bypass valve, 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 26, 2010

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have you fixed the water pump, yet?

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do the procedure below.

, I want you to get a can of intake cleaner (ABOUT $5.00) from any local auto parts store like NAPA or Carquest, do not use carburetor spray, intake cleaner only or u will damage the Teflon coating inside the throttle valve and air bypass valve, 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.

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