[DML] Re: Frequency Valve operation

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

If the frequency valve won't run continuosly you have a bad/dirty
connection somewhere. It should not cut in and out. Even with a bad or
disconnected O2 sensor the frequency valve should buzz. Start by
making sure the Lambda ECU has a continuos 12 volts on it will the
engine is running. The relay that runs the Lambda does fail.
David Teitelbaum
vin 10757


--- In dmcnews@xxxxxxxxxxxxxxx, "stainlessilusion" <5n-@xxxx> wrote:
> Fine tuning the engine today, noticed that the frequency valve will 
> not operate unless the CO adjustment is turned CCW-lean,. FV will
> then 
> cycle on for about 4 seconds-fade off for a few seconds, and then
> back 
> on. The engine runs rough compared to turning the screw a bit tow







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