1999 Honda Accord Poor Gas Mileage

16,000 MILES • 4 CYL • 2WD • AUTOMATIC
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RAYGOMEZ2008
  • MEMBER
  • 1 POST
i have a check engine lite with poor gas mileage it was 500 miles per tank drop down to 400 after a view weeks drop down again to miles 350 per tank , I was freaking out then i took it to a shop to have it repair. ! they've replaced VALVE, CANISTER VENT SHUT, I'd asked him and he told me that should takes care of the check engine lite & the poor gas mileage problems. 2 days after that i went back then they replaced VALVE SET, SOLENOID. ! another labor and parts charged to my acnt.:(. Check engine lite problems was fixed, but poor gas mileage problem is now worst around 300 miles per tank. It is really sad for me, cause i am currently unemployed. Could you please help me and tell me what have caused my car to have a really poor gas mileage, what parts need to be checked and replaced ??
Thank you so much before and after !
Ray
Mar 2, 2009 at 12:43 PM
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F4I_GUY
  • ✓Experienced Mechanic
  • 3,302 POSTS
If that engine light keeps on coming back with a P0440 code (which I assume was your inital problem) The mechanic has not properly fixed the issue and he should resolve it.

If that light stays off for good, you may just need a tune-up or have a lazy oxygen sensor.
Mar 3, 2009 at 9:54 AM
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