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RE: Mixture too rich?


>> I have a '70 squareback which has been getting pretty bad mileage. I
>> think that it is maybe running to rich. I put my hand behind the
>> exhaust and some wet dark brown to black stuff gets on my hand. Does
>> anyone know how I can adjust my mixture (if I can)? Or if that is even
>> a result of running rich?

>What kind of gas mileage are you getting?

I haven't measured it exactly yet (too depressing), but I can go about
100-120 miles per tank, 10 gallon tank so I guess 10-12 mpg.

>One common problem with this FI system is that it runs rich if the charging
>system voltage is low. This tends to happen as the voltage regulator ages.

I just bought it a few months ago so I have no idea about the age of
the regulator.

>You can check this by measuring the battery voltage with the engine warm after
>a drive and at medium rpm. It should be above 14 V; if it is below 13.5 V,
>replace the VR with a Bosch 30-019.

I just checked the voltage, and it was about 13.8-14.3 volts. Odd huh?

Geoff 
"70 squareback

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