Ok, here we go with another mpg problem. This time it is my mother's 93 245. Last mark was 11 gallons = 170 miles. This is about the mileage I WAS getting before I swapped my pink label ecu for a white label. I did some small checks, no codes through ignition, or fuel system. White label ecu already (I figured since it has 3.1) Bellows look fine, fuel pumps do their job fine. Overall it runs perfect, but 15 mpg is really quite terrible. The exhaust is snapped off after the cat, but I think it should still create enough back pressure to let the engine run correctly. Fuel injector connections look good and clean, amm seems to operating well... Another tidbit here, it stalls and runs very poorly when wet. Hit me with any ideas, and anything I need to check out. We just replaced the dizzy cap trying to pin the wet weather problem down to no avail. Thanks for the help guys!
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1989 244 DL first Volvo