My CEL is on. A code reader at a gas station could not see any code. Is it possible that the light can come on without a code? Also chipmunks got into my air filter box so I cleaned it. Maybe this is related. Anything else they might have clogged up? Thanks, I will be working on this tomorrow with my own code scanner. Can the turbo somehow get clogged by chipmunks? Also I am losing coolant very slowly - maybe one cup per month, Is that clue? Autozone is not loaning pressure testers currently - do people make there own?
Just wondering - does the light ever come on simply because a mileage interval elapses to induce owners to go to Volvo? Also the car feels a bit sluggish.