The idle speed is controlled by a separate controller, not the ECU. The controller is located in front of the right side tail light. Both can fail and the controller can respond to a bad input. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Alasdair Crawford Sent: Monday, July 30, 2007 9:49 PM To: vanagon@GERRY.VANAGON.COM Subject: 87 Westy High Idle Last weekend my 87 Vanagon suddenly developed a 3600rpm idle! Found that if I disconneced the lead to the Idle controlvalve it imemdiately dropped back to normal 850rpm. Would this suggest a valve problem or does that mean something else feeding the ECU is telling it to request 3600rpm? Trying to decide whether I should replace the valve (a $150 experiment) or just take it to the shop for real trouble shooting. Thanks, Alasdair Crawford 87 Westy |
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