Yes by swapping in a new one from VanCafe before they left. 
I need to start chasing power and grounds around the module next. It was the mistake in the Bentley that had me confused. 

> On May 22, 2018, at 2:09 PM, OlRivrRat <OlRivrRat@comcast.net> wrote:
> 
>    Have You determined that the Idle Control Module/Relay is in Good
> 
> working order ~
> 
> 
>> On 22 May , 2018, at 11:12 AM, Pat Spragge wrote:
>> 
>> I’ve been trying to determine why my valve doesn’t seem to be vibrating on a 1989 2.1 auto Westy.
>> I have performed the “function” check in sec. 24.53 and checks fine. Additionally, the idle valve functions using a ‘test box’ designed to operate it. Also, Peter at VanCafe loaned me a new Stabilizer Module a while back to see if that was the issue...it wasn’t.
>> I was going to perform the 2nd check “regulator”, however I am unsure about the step where one connects the multimeter with adapter to idle stabilizer valve #1 in the photo. Problem is the photo shows the O2 sensor and not the valve.
>> Not sure how to proceed.
>> 
>> Thx
>> Pat
>