My '01 S80 has 150k miles on it. I had the ETM software upgraded in December. Recently the car has no acceleration, especially from a standstill or going uphill. Combine the two and its a disaster. The check engine light is blinking, although sometimes when I am at a stoplight it will stay lit until I start moving again. Gas mileage is way down, probably due to accelaration problem. Engine seems to be idling rough although not as bad as before the software was upgraded.
Does this sound like the ETM needs to be replaced? I don't go to the dealership for repairs, but obviously I would if it would be covered.
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