| Re: VSS vehicle speed sensor hanging up the idle? |
Subject: Re: VSS vehicle speed sensor hanging up the idle? by dan0617 on 2009/9/7 21:38:55 Either the throttle blades are hanging open for some reason, which can be fixed with a spring, or possibly the IAC valve is sticking. IAC is more likely. Next time it hangs up pop the hood while the idle is up and see if the throttle is against the stop screw. If it is, then it isn't hanging open and the extra air is coming in from somewhere, likely the IAC valve. Remove the IAC, clean it, clean it's housing, and put it back in. I've cleaned mine several times, till eventually I had to replace it. Same problem as you only my idle would only hang at about 1300 rpms. Turning the A/C on and off would free mine up from sticking at first but eventually not. Could also be the IAC throttle follower in the tune needs tweaked but if it worked good before then that setting is likely fine. |
