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1988 Mercedes-Benz 300TE 3.0L Poor Fuel Economy, on-off ratio
Posted to European Driveability on 4/15/2007 9 Replies

I'm trying to check the on-off ratio with my working Hartmann tester. With the motor running and warmed up, the needle remains at 0 when properly connected and shows battery voltage with a dvom at pin#3. In the factory '88 YMB, it states the CA model ecm isn't...

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  Related Documents & Media  1988 Mercedes-Benz 300TE

 
Message Closed w/FIX

car Vehicle Data

1988 Mercedes-Benz 300TE

VIN WDBEA90D8J
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / cis-e
Emissionsobd1/ca
SymptomsPoor Fuel Economy, On-Off Ratio
OccursCan't Adjust
Message Closed w/FIX

car Vehicle Data

1988 Mercedes-Benz 300TE

VIN WDBEA90D8J
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / cis-e
Emissionsobd1/ca
SymptomsPoor Fuel Economy, On-Off Ratio
OccursCan't Adjust