Date:         Tue, 22 Oct 2002 02:56:37 +0000
Reply-To:     Jfp w/2 WBXs <jfp7@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jfp w/2 WBXs <jfp7@HOTMAIL.COM>
Subject:      Re: The end of the road (86 westy runnin' rich)
Comments: To: jcessence@HOTMAIL.COM
Content-Type: text/plain; format=flowed

Hi John,

Has anyone performed a typical pin-by-pin check of the 25 pin Digifant
Control Module(DCM)? If the mixture is incorrect, it's because the DCM is
choosing the wrong millisecond injector opening time or perhaps there is
continuity from the injector control circuit to ground. With every Vanagon
I've bought, I recorded the values of the DCM circuits while the engine was
running properly. Then if it ever runs poorly I perform the same tests and
note which electrical signal has changed. The pin-by-pin should be performed
dynamically with the DCM plugged in when the engine is running poorly.
Remove the plastic cover on the 25 pin plug and back probe with a known good
voltmeter. If you don't have nominal(good)tests values, I can send you test
values I've taken from an '86 syncro. I used a special 25 pin break-out box
to acquire my test results.

Regards,      John



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