Vanagon EuroVan
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Date:         Sat, 13 Feb 2016 11:41:40 -0800
Reply-To:     Stuart MacMillan <stuartmacm@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Stuart MacMillan <stuartmacm@GMAIL.COM>
Subject:      Re: 1988 Vanagon GL tintop
Comments: To: John Rodgers <jrodgers113@GMAIL.COM>
In-Reply-To:  <CA+az7_6pvojhw7hSp4ZGDeYw+VMdCrcUJigdmM=+t0Srmsff5Q@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"

When this exact thing happened to me my idle control module was fried. It's in the air intake behind the right tail light in a bracket mounted on the back wall. It's expensive, see if you can borrow one before you buy one. http://www.gowesty.com/product-details.php?v=&id=23468

Stuart

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of John Rodgers Sent: Friday, February 12, 2016 10:33 PM To: vanagon@GERRY.VANAGON.COM Subject: 1988 Vanagon GL tintop

Today the new (to me) ECU with Shoebox Monitor pigtail, arrived. Took,it to the shop and the mechanic there installed it. The new 7.5 fuse was in place and the new 2003 TDI starter turned the engine easily. With the replacement ECU in place, the engine fired right up. However, there were two immediate problems.

The engine hunted up and down rapidly over a significat range of rpm. As the engine warmed this tended to disappear.

The other problem was that the engine idled way to high, about 1800 rpm. Shut it down, pulled the O2 connector, and the ISV connector, and started again. Engine idled nicely at 850 rpm!

What to do with this situation I don't know at this point. The ISV was working just fine, Could hear it buzzing beautifully. Left the isv unplugged but hooked up the O2 connection and 5he rpm jumped to 1400 rpm. Don't know what to make of it.

Reseated the front wheel bearings and retorqued the spindle lock nuts and peened them down. Greased the C/V'S.

MONDAY I pick up my magic carpet!!!

Comments and opinions appreciated.

John


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