Why is my daughter's beetle short on power? on 2002 Volkswagen Beetle

Struggles to climb hills and high fuel use, lack of power all the time. spark plugs already checked.

by in Tacoma, WA on November 03, 2012
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2 answers
ANSWER by , November 03, 2012
check codes and advise
ANSWER by , November 03, 2012
you must have a ck eng light on scan codes and post so we can adv. poss mass air flow sensor,very common on these cars