[Vwdiesel] Diesel injector pump questions.
LBaird119 at aol.com
LBaird119 at aol.com
Tue May 15 12:00:17 EDT 2007
There's always the possibility that your rings aren't well seated
after sitting while doing all the work.
If you have a bad injector or more they could be soaking the
inside of the chamber and it's "afterburning."
I had a similar problem sometimes on my Rabbit and on top of
the pump there are a couple little "fingers" under the return
spring. If I wired one of them to stay where it sits while in the
idle position, it stopped the problem. No clue just what or why
but it did fix it. This was also after having the pump rebuilt but
it was doing it before as well.
Generally if the fueling is turned up too high then the car doesn't
want to return to idle quickly or will idle high for a bit before
dropping. It usually doesn't want to take off.
Return line restriction might cause this as well. It seems like the
VW pump goes "up" in fueling or timing as the internal pressure
rises. GM pumps go down so a constant starve out is from a
plugged return line. Worth checking that one.
Loren
**************************************
See what's free at
http://www.aol.com.
More information about the Vwdiesel
mailing list