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Date: Mon, 27 Dec 1999 10:15:38 +0200
From: Roy =?iso-8859-1?Q?Bj=F6rkstrand?= <nospamroilonopsamut.fi>
Subject: Re: 900 idle setting ??


Carl wrote: > Recently had throttle bowls cleaned and now she's up about 1500 rpm after > warming. I was told the computer would figure it out after a few days but > no. > Any manual adj I can make to back her down a bit?? > 87 900s 16 naturaly asp Any help's a gift.. Thanks. I assume that you have a LH-jettronic. Yes, the computer should "customize" itself. The idle itself is "non-setable". I would check some other things before doing anything involved with the computer. Things to check: Does the throttle close properly, airleaks (my first quess, spray some water to the air intake seal - any change in idle), the temp sensor (under the air intake) (my seocond quess - (canīt remember exactly) Ohms around 3000-5000 when hot, less when could (100)) and the AIC (automatic idle control). Are the exhaust mixtures correct or are the HCīs and Oīs high? Is the lambda sensor giving the correct pulse? Why was the throttle cleaned in the first place - any background to the problem? Roy ps. If the fuel mixture is lean, donīt give her full throttle.

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