Well, thanks to all who responded. Ken, you nailed it! Turned out to be a simple fix, I am happy to say. Somehow the new throttle position switch got out of adjustment and was not "on" at idle. After making a minute adjustment, all was fine. Starts right up and idles like its supposed to now. Should have guessed that was the problem after all the grief I went through with the supposed "Vanagon Syndrome" only to find out it was a bad throttle position switch. Keith O 84 Westy "Brownie" 90 Westy Syncro On Dec 9, 2005, at 8:28 AM, Keith Ovregaard wrote: > New temp ll sensor was installed recently, so it's not that. I will > check the throttle switch again to make sure it is activated in the > idle position. > > Has anyone messed with the CO adjustment and not had an analyzer to > calibrate the CO output? Or should I not even go there? > > > On Dec 9, 2005, at 7:16 AM, Ken Lewis wrote: > >> Did you replace the TEMPII sensor? >> >> I would not worry as long as the Throttle Position Sensor clicks when >> coming >> off and/or going into the rest position. >> >> Ken Lewis >> http://neksiwel.20m.com/ >> ----- Original Message ----- >> From: "Keith Ovregaard" <kovregaard@COMCAST.NET> >> To: <vanagon@GERRY.VANAGON.COM> >> Sent: Thursday, December 08, 2005 10:38 PM >> Subject: [VANAGON] Rough Cold Start >> >> >>> My 90 Syncro is idling a bit rough and seems to be running very rich >>> right after startup. Smells like more unburned gas coming out of the >>> exhaust than normal, so I suspect that it's running too rich for some >>> reason. It doesn't quite stall, but RPM's dip to 500 or 600 and >>> refuses >>> to hit 850 unless I hit the throttle. Then the symptoms go away. >>> Lasts >>> for a very short time although I have not tried to see what happens >>> if >>> I don't goose the throttle. We are not talking extreme temps here, by >>> the way. >>> >>> Been through about every adjustment and tested/replaced parts except >>> that I never touched the CO adjustment. I did install a new throttle >>> switch and wonder if it needs to adjusted more accurately. Could not >>> find anything in the Bentley or the "Bentley Lite" manuals other than >>> the usual fuel injection test procedures, blah, blah. >>> >>> Any ideas? >>> >>> Keith O >>> 84 Westy "Brownie" >>> 90 Westy Syncro >>> >>> >> > |
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