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Discussion Starter · #1 ·
I have a KIA 2008 Optima 2.4L that is getting bad fuel mileage, 24 MPG, when it should be around 28 MPG. The car has 183,000 miles. I have changed MAF, O2 sensors, fuel pump and filter. My data stream tells me 99% fuel intake, when it should be around 50%, or less. Could this be an injector issue? Yes, air filter new, and all clean. I Think Injectors, or Coils? Any suggestions? No codes.

Can I send Datastream info to anyone for assessment?

Thank you.

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