John:

It should work fine.  I have an 86 ECU I keep as a spare for my 89 Westy
which has an 022D ECU.  I swapped them out once to make sure it worked OK
and it did.  The D is just an update and is the preferred ECU for optimum
performance.
Tom
----- Original Message -----
From: "John Carpenter" <Trvlr2001@AOL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, February 01, 2004 10:08 AM
Subject: ECU COMPATABILITY?

> Hi All,
> Continuing saga, U cant say we aren't trying! :)
> We towed the 91 the 45 miles from Layton to West Jordan, UT.
> And I first want to thank fellow lister Bob Stevens of SLC.
>  (AKA; mtbiker62@HOTMAIL.COM )
> He took his Saturday morning & helped with the tow.
> "& what a long road to tow" it was!
> I cant thank him enough!
> This is what the list is all about!
> And I'm looking forward to the time I can repay the list for sure!
> If you're in the SLC, UT area with troubles, give me a call! :)
> Not for giving it the old college try, the bus still isn't running.
> Bob & I traded the ECU out, to no avail.
> My question is, I had an ECU from a 86, 2.1,
> without the "D" at the end of the part Number.
> Should it still have worked in my 91,
> with the later version?
> I still have to check out power to the ECU, it appears!
> Thanks again to everyone for your help & expertise.
> It's just incredible, the bank of knowledge in this list!
> Synergy, for sure!
> John C.
> SLC, UT
> 85 & 91 Westy's...
> ( I'm starting to have bus withdrawals!)
>