[DML] Re: The FV

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

You need to find out if in fact the FV is still running as the engine
warms up or it is shutting down. It should make noise during warm-up,
even though it is in a fixed duty cycle. It is normal for the engine
to hunt and surge during warm-up a little but should be smoother once
the Lambda goes into closed-loop. There is a ground wire on the front
right side of the intake manifold that goes to a plug. Make sure it is
clean and tight. Make sure the contacts on the FV and the plug are
clean and making good contact. Pull the plug off the Lambda computer
and take it apart. You will see numbers on the plastic. Make sure you
have good, solid, low resistance grounds on #5 and #16. Also the case
has to be grounded. You could also have a problem with the power to
the Lambda. Check the relays that power it and the FV. The FV receives
power when the engine is running, the Lambda computer provides the
ground. When you hear the FV stop push on the WOT switch. If you hear
the Lambda now you may have a bad ground on pin #5.
David Teitelbaum
vin 10757


--- In dmcnews@xxxxxxxxxxxxxxx, "stainlessilusion" <5n-@xxxx> wrote:
> 
> 
> Guys I just had a quick question about the frequency valve if anyone
> can help me out. My engine idles fine when I hear the FV running, it
> is the  distinct sound you can tell its running. Then it suddenly
> cycles off and my engine idles a bit worse and starts to idle up and
> down for a little while until the FV starts back up again. Problems
> with the wiring or is this normal? Thanks for past and future help!!
> -----Dani B. #5003








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