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Old 01-04-2006, 01:50 AM
alienman alienman is offline
'90 300se, '95 c280
Join Date: Oct 2005
Location: Honolulu, Hawaii
Posts: 112
Well, I picked up the sensor at the local MB shop today and checked out the resistance on the pins before removing the old unit. It turns out that they were the same and that my analog meter was at fault. I got my digital meter back from my buddy who was borrowing it, and found that the old sensor is within specs.

I'm going to take the sensor back tomorrow, but am not sure what else could be causing the poor fuel economy. I think the next logical step would be to check the EHA, fuel injectors for leakage, then the fuel pressure regulator and distributor. Is that "all" that can go wrong?
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