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Old 01-28-2003, 05:02 PM
Posts: n/a
Re: O2 sensor/EHA? - 300E running rich

Originally posted by Freestyler
My '86 300E, 178000 miles, is running WAY too rich. (~10 mpg)

At the bottom you have ' 86 300E CONVERTED to 95 300E' what do you mean by this? If you have swapped engines, it may play a role in diagnosis

Symptoms: Exessive fuel consumption, Exhaust smells of gasoline, Black soot from tailpipe, Black smoke under full throttle, and a strange 1 sec. 'surge' when i touch the gas pedal.

This could be many things, fuel pressure regulator, bad plugs, bad wires,burned valves,bad valve guides etc

Warm engine - unplugged O2 sensor - measured 0,77V at idle and 0,81V at 2000 rpm from the sensor. (should be in range right?)

No, O2 Volts > .45 is rich

More info on what the 'conversion' means will help
Freestyler [/B]
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