Skip to main content
Gerry | Vanagon
Checking account...
← vanagon.com home · Continue the discussion in the forum
Subject:Re: [VW gas I4 Conversions] weird engine behavior, stops on downhill coasting, diagnostic help?
From:David Beierl
Date:Fri, 14 Sep 2018 12:12:55 -0400

>
> the ecu shuts off fuel pump on down hill and there is no prime when turned
> back on. key on and off primes it.
>

Not exactly -- I think.  The deceleration mode shuts off the injectors, but
AFAIK the pump keeps on running and circulating fuel through the ring.

However I'm not absolutely certain of this.  Mike's suggestion certainly
sounds plausible.

Yrs,
d