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Originally Posted by LeaUK
I need to recheck the HC as 15ppm just seems rather low in my opinion but I have little practical experience and have to rely on those that do and often what the measuring instrument tells me. MB specs are 300ppm max so if these weren't erroneous readings then she's burning fuel fine 
Lea |
test, my baby's HC was . . . are you sitting down . . 2ppm at idle and 4ppm at 2500. So 15ppm is not too low. Means the cat is doing it's thing! And you car's engine ain't too bad either. Enjoy it!