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Old 04-06-2003, 07:45 PM
Posts: n/a

"Ignition on, engine off: 3.5 volts or 70% duty cycle steady"

Indicates Federal version -- Okay

"Ignition on , engine running and hot: steady 1 volt or 90% duty cycle"

Indicates a fault but you need the CD-ROM in order to determine the specific cause.

"The same measurements on my '86 300E (103.983 non-CA engine) were 70% when engine off and hovering 50% (7 volts) when engine running which I think it's normal."

You are correct.

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