Could be...but more likely there is a faulty sensor somewhere.  You can
either start replacing stuff or start the grueling task of checking out all
the sensors and referencing the Bentley manual all the way.

Laurence Smith
Hamilton, Ontario
90 Westy "Fanumbos"

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM]On Behalf
Of Chad G
Sent: Friday, October 19, 2001 3:35 PM
To: vanagon@GERRY.VANAGON.COM
Subject: ECU Questions

Could a faulty ECU cause poor gas mileage??  Could it cause an engine to run
rich and hesitate?