If you have 5 volts on the plug for the auxiliary air regulator, you have the wrong plug. You swapped the plug with the throttle switch. So you either blasted the new switch or burned up a wire connection for the 12 volt supply for the air regulator. That supply is un fused. so something has to give. Usually the switch gets blasted.

Dennis

----- Original Message -----
From: Ronald Michaels
Date: Saturday, January 13, 2007 5:20 pm
Subject: Auxiliary air regulator
To: vanagon@GERRY.VANAGON.COM

> Hi
>
> I am troubleshooting some problems with my 85 Westy FI system.
> Thanks to
> List members who helped me find a idle enrichment switch
> recently. I have
> that part installed now.
>
> Today I tested the auxiliary air regulator as outlined in
> Bentley. After
> the engine warms up the regulator should close and pinching the
> hose should
> not make a difference. The thing does not close. After taking the
> regulator out of the vehicle I have measured a supply voltage
> across the
> pins of the electric plug of 5 volts (no voltage value shown in
> Bentley).The regulator has a resistance of 30 ohms. The sliding
> door (gate,
> whatever) inside the regulator moves freely when I use a
> coathanger wire to
> check it. I have tried another regulator from a 84 engine
> (Thanks Sadir)
> and it does not close either. Lots of WD 40 didn't help.
>
> I adjusted the regulator to be only slightly open and the engine
> idle is
> slower but it still is not working correctly.
>
> Am I missing something? Are the voltage and resistance values
> correct?
> Has anyone ever disassembled one of these? I think I can get it
> apart, but
> getting it back together might be a little harder. What are the
> failuremodes? Any advice is appreciated.
>
> Thanks,
>
> Ron in Seymour TN with 84 and 85 Westys and 78 bus - Buster VanWaggon
>