Question about 2001 Hyundai Sonata
I'm getting 10 miles to the gallon vs. the 21 I had a month ago. I took it to a mechanic and they couldn't figure it out. I have had both O2 sensors changed and MAF. Any suggestion on what might be causing the problem. I ran fuel injector cleaner through my last tank of gas.
Have u changed all your plugs and check plug wires. Look at your firing and timeing .
Posted on Feb 22, 2014
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Posted on Jan 02, 2017
I have the same problem as talked about above. 2002 Hyundai accent gsi. HORRIBLE gas mileage. I only get about 320 km per full tank. My driving habits are good. i took it to the garage and they put it on the computer and no error codes showed up. Question: Can a MAP sensor be faulty but NOT show up on the computer diagnostic? I had my O2 sensor checked out and my exhaust, and changed the flex pipe. Car runs pretty good just horrible gas mileage and kinda crappy power. Changed fuel and air filter. Cleaned the fuel system entirely ($80 at garage not $4 bottle).
Anyone ever use a resistor in the MAP sensor?
Posted on Nov 19, 2008
It sounds like you have either a lean or rich condition ocurring,could be exuast leak,vac leak,leaking fuel preasure regulator,cat convertor.At this point would go to dealer for diagnosis.
Posted on Jun 17, 2009
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