High Idle 86?
Thread Starter
Drifting
Joined: Feb 2009
Posts: 1,302
Likes: 2
From: colchester CT
High Idle 86?
My 86 is idling at 900 rpms. Seems a bit high. What or where should I begin to look. I cleaned the MAF and the throttle plates, last year I put in new plugs and wires. Car has 82k and runs great but seems to have dropped in gas mileage and I just failed CT emissions. I had the car fixed to pass emissions and it was the mechanic who noticed the high idle. I thought I would start by asking here before letting anyone else touch it. Any thoughts would be appreciated. Thanks
Slingshot
Joined: Dec 2001
Posts: 3,817
Likes: 24
From: Charlotte NC
I recommend that you start by cleaning or replacing (if necessary) the idle control valve. This important part can easily become clogged with soot. Check it out.
http://www.ecklers.com/product.asp?p...1&dept_id=1279
http://www.ecklers.com/product.asp?p...1&dept_id=1279
Thread Starter
Drifting
Joined: Feb 2009
Posts: 1,302
Likes: 2
From: colchester CT
o2 sensor was just put in last year. I am going to take off the throttle body so I can get to the back of the plates and clean or replace IAC. I have never had the timing checked since I have owned the car, 2 years. All the vacuum was just checked by the mechanic who fixed it for emissions testing. I have never done any work on an engine so I don't really know what I am doing yet. I am going to follow the FSM instructions and probably bug you guys with stupid questions along the way. The good news is it runs great, just idles high. I have done just about everything else you can do to this car so I guess it's time to learn about the engine. Thanks for the help
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,279
From: Hartford WI
o2 sensor was just put in last year. I am going to take off the throttle body so I can get to the back of the plates and clean or replace IAC. I have never had the timing checked since I have owned the car, 2 years. All the vacuum was just checked by the mechanic who fixed it for emissions testing. I have never done any work on an engine so I don't really know what I am doing yet. I am going to follow the FSM instructions and probably bug you guys with stupid questions along the way. The good news is it runs great, just idles high. I have done just about everything else you can do to this car so I guess it's time to learn about the engine. Thanks for the help
Thread Starter
Drifting
Joined: Feb 2009
Posts: 1,302
Likes: 2
From: colchester CT
I don't have a scan tool or timing light, I would have no idea how to use them. Thats why I figured I would start by giving the throttle body a good cleaning and checking the IAC to see if it's dirty and or needs to be replaced. I see the idle screw is on there as well. After looking through the FSM I think I can handle these steps. I may end up at a garage to deal with the timing. I like to do the things that I think I can handle without causing further damage. Thanks getting me started in the right direction
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,279
From: Hartford WI
I don't have a scan tool or timing light, I would have no idea how to use them. Thats why I figured I would start by giving the throttle body a good cleaning and checking the IAC to see if it's dirty and or needs to be replaced. I see the idle screw is on there as well. After looking through the FSM I think I can handle these steps. I may end up at a garage to deal with the timing. I like to do the things that I think I can handle without causing further damage. Thanks getting me started in the right direction
Get a scantool and learn to use it. It isn't too difficult
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