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Shastasurf

Idle air control valve testing?

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Shastasurf

I read a topic about testing iac by connecting certain terminals on dlc connector. I can't find the thread on this, anyone know the specifics?The boat is a 1996 vlx.

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Levi900RR

Not sure but I replaced mine for like 20 bucks. Might not be worth the effort in testing...

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formulaben

I read a topic about testing iac by connecting certain terminals on dlc connector. I can't find the thread on this, anyone know the specifics?The boat is a 1996 vlx.

Can't say for sure on that year, but my recollection is that on keyup the IAC moves/cycles...I could be wrong though.

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Shastasurf

Well I figured it out, if u put the ecm in service mode by jumping a and b on the dlc connection the iac valve moves. Mine was making a really loud sucking noise. Turns out that the timing was never adjusted correctly in service mode and when I did the timing in service mode the noise is gone and idles a lot better. Turns out discount mechanics aren't good, lol.

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