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Date:         Wed, 1 Sep 2004 08:37:48 -0700
Reply-To:     Craig Oda <craigoda@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Craig Oda <craigoda@GMAIL.COM>
Subject:      Re: O2 sensor problems
Comments: To: "thx0001@aol.com" <thx0001@aol.com>
In-Reply-To:  <111.36d3b5ca.2e670d9f@aol.com>
Content-Type: text/plain; charset=US-ASCII

George, Thank you for your suggestions. RC also suggested I adjust my throttle position switches.

On the '83 digijet there are two idle position switches. I definitely know that one of the switches is not set properly. The one that signals that the throttle body is at idle has it's spring jammed up against the body of the switch. I've loosened the screw on the throttle body that pushes up onthe idle switch, but it is still not set properly.

when I put my transmission back in, the accelerator cable got loosened up a bit. I have tightened up the accelerator rod in the engine bay as much as I can tighten it. Howevever, it still needs to be tightened more.

I didn't realize that the idle position switch would affect the performance so much at acceleration. I had thought that it would only affect the engine performance at idle. The van only shows problems when it transitions from idle to partially open throttle off the line.

As far as getting the idle position switch back to a good setting, is there a way to adjust the accelerator cable? I looked at the cable connection at the transmission and it didn't look adjustable.. I guess there is an adjustment place under the accelerator pedal?

The new AFM is about $350. Buying a new one is going to be a last resort. I'm going to try and adjust the idle and full-throttle position switches first. Then, I'll try and tighten the spring inside the AFM so that I get my fuel/air mixture screw on the AFM back to working. Right now, it is loosened counterclockwise as much as it will go.

Thanks.

Regards, Craig

On Wed, 1 Sep 2004 07:33:51 EDT, thx0001@aol.com <thx0001@aol.com> wrote: > Craig, > > 1/ Get a new AFM and don't yield to the temptation to open it up. > 2/ Check and clean every electrical connection, especially grounds, in the > engine bay. > 3/ ADJUST THE THROTTLE POSITION SWITCHES. > > Then, go about your troubleshooting. > > George >


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