Date:         Thu, 10 Oct 2013 12:44:15 -0400
Reply-To:     John Meeks <vanagon@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Meeks <vanagon@GMAIL.COM>
Subject:      Runaway Engine RPMs
Content-Type: text/plain; charset=ISO-8859-1

Yesterday I was in a 2 mile stop and go traffic jam. About 3/4 of the way
the low speed fan came on as expected. A minute later the engine revved up
tp 3K rpm and stayed there. The gas pedal was all the way up. Couldn't get
off the road so I turned off the engine when there was a stop situation.
Turning it back on the engine revved right up to 3K again.

Finally pulled into a parking lot and waited about 15 minutes. Started
normally with no recurrence the rest of the way home.

I had this same problem about a year ago (intermittant) and 'fixed' it with
a new throttle cable and cleaning out the rust and dirt from the pedal to
cable housing. Now it's back!

Side note  just put the engine in after head gaskets and ring replacment
and It was running great for the past week.

Could the TPS be the culprit if it made the ECU see full throttle and ECU
then enriched the mixture?

Any ideas are welcome.

John Meeks
'91 Vanagon MV Phoenix
Stock 2.1 250K miles
Northern Michigan

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