Where is iac valve on honda civic

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Always disconnect the negative terminal on your battery before working on it, and make sure to wear the proper eyewear and use all the proper steps for safety. Using your needle nose, loosen and remove the coolant hoses shown above and circled in orange. The coolant line to the right runs to your throttle body, and once you have these lines removed, you can undo the 12mm bolts and remove the Honda Civic IAC.

Now you can do one of two things here to test your Idle Air Controller. This site uses Akismet to reduce spam. Learn how your comment data is processed. Thursday, November 11, Sign in. The throttle body will need to be removed from the engine in order to get to all the bolts on the side of it to get the valve off. You will have to remove the air filter housing first to get to the throttle body bolts.

There are clips around the middle of the housing, pry up on the bottom and they'll release. Remove the air filter and then the Bolt holding the bottom of the housing in. How do you clean a Honda IAC valve? Open the hood and remove the two screws that hold the idle control valve to the throttle body.

Remove the electrical plug running to the IAC valve. Pull the idle control valve off the throttle body, and turn it over to expose the valve openings. What should my Honda Accord idle at? What is idle relearn? Because your vehicle's engine is electronically controlled by a computer, some control conditions are maintained by power from the battery. When the battery is disconnected, a new battery installed or a tune is loaded, the engine must relearn its idle and fuel trim strategy for optimum driveability and performance.

How do you reset the throttle position sensor on a Honda? Shops perform a Honda throttle body reset with a scan tool, but you can perform it manually by following this procedure: 1 Turn the ignition key to the RUN position for 2-seconds.

Do not start the engine. How do you test an IAC valve? Resistance should be ohms. Using an ohmmeter, measure the resistance between pins 1 and 2 on the IAC valve. Can an IAC valve be cleaned? Cleaning an idle air-control valve can keep you from buying a new part, but only certain idle air-control valves can be cleaned.

The idle air-control valve must have a spring-operated valve for cleaning to make it work. What causes rpms to fluctuate at idle?