Question about 2003 Honda Civic
Car runs fine most of the time but going up hills it loses power and downshifting doesn't help. Lucky to be doing 40mph at the top of a hill. Hooked up a scanner and there wasn't any error codes and the emmision read fine. Fuel pump? Exhaust restriction? Mass air flow sensor?
If you had a bad mass air sensor, it should register a fault code. Ditto for oxygen sensors. I'd change the fuel filter for sure, as well as spark plugs (make sure they're gapped correctly), and run a bottle of Seafoam through the gas tank. If that doesn't do it, change your cap, rotor, and spark wires (all told you're under $100 for everything).
Posted on Jul 21, 2008
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Posted on Jan 02, 2017
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