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Low idle after intake manifold and tb cleaning 200 1990

uid 39451's pic
posted by  ridesR100RS on  Wed Dec 28 22:40 CST 2011
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last visit: Sun Aug 10 18:35 CST 2014
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After a recent throttle body cleaning, I had a high idle (1500 rpm). I removed the throttle body (again) and adjusted the throttle position sensor (TPS). It's a zen exercise; the click is subtle but you hear it if held close to your ear. The FAQs have good instruction for setting it, c. .015-045 with a feeler gauge held against the mechanical stop. Now the 945 is purring at 600 rpm, a bit low for idle. It's tuned and ready for the run to Florida tomorrow.

Your problem is a low idle. Still, getting the TPS properly set is a good baseline, and may resolve the issue.


Chris in VT, '94 945 w/ 172K






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New Low idle after intake manifold and tb cleaning [200][1990]
posted by  stj  on Wed Dec 28 12:47 CST 2011 >


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