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Blipping Thottle to get idle down 200 1990

posted by  rice240 on  Thu Feb 10 17:16 CST 2022
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last visit: Tue Aug 26 10:51 CST 2014
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So, my car got a 300,000 mile refresh. It's a M47. I changed as much as I could including, IAC, FPR, Plugs etc. I cleaned everything else and checked for vacuum leaks. Of course now I have high idle and surging sometimes. I adjusted the idle with the screw as low as it will go. TPS makes a click on the slightest opening. But if I blip the throttle, at idle it will settle down below 1000 RPM. Sometimes it idles correctly on it's own. Every now and then it will backfire when shifting.. If I put the AC on, (I am near Houston) it knocks the RPM's down a good bit. What should I try and why does blipping the throttle help?






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New Blipping Thottle to get idle down [200][1990]
posted by  rice240 subscriber  on Thu Feb 10 17:16 CST 2022 >


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