Re: [DML] Frequency valve buzzing when key in "ON" position?

["Dave Swingle" <swingle@xxxxxxxxxxx>]

Another quirk of the system is that if you turn the ignition on (not 
start the car) with the throttle floored, the frequency valve will 
buzz continuously. I discovered this effect on a car with a bad 
(stuck) full-throttle microswitch. 

Dave S


--- In dmcnews@xxxxxxxxxxxxxxx, Martin Gutkowski <martin@xxxx> wrote:
> 
> Matt Spittle wrote:
> 
> > 
> >
> >1.  Is the frequency valve supposed to buzz when the key is in 
> >the "ON" position? (engine not running)
> >  
> Not continuously, but a quirk of the K-Jet system means the RPM 
relay 
> (which powers both fuel pump and frequency valve) often gets fooled 
into 
> "seeing" ain ignition signal when you first turn the key. It should 
> switch off after a second or so. If it doesn't then you may have a 
> faulty rpm relay.








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