Check engine light came on. Mechanic said it was a generic error and probably my fuel cap. Cleared error. Cap and seal are fine and closed tightly but check engine light returned and there is a fresh gas smell in the cabin. This smell is present whether the car is running or not and has nothing to do with the amount of fuel in the tank.
I've got a '99 Oddy with the same symptom of gas odor inside and outside of the vehicle. Gas cap was secure and the level of fuel made no difference, so by process of elimination, I checked and followed the fuel lines and made sure there were no cracks that I physically could put an eye and hand on and eventually ended up at the fuel injectors and fuel rail. From there, all you need to do is remove the plastic cover plate from the intake plenum and the injectors will be exposed as well as the fuel rail. Turn the car on and wrap some paper towel over your hand like a mitten and run it over the suspected areas. You'll either find your leak there or the fuel filter located under the rear sliding doors.
Did the mechanic check for engine codes with a scan tool? If not, u can have it done at most parts stores for free. Write down any codes they get off the honda's computer, ask them what to do to correct any trouble codes they find, and if it has anything to do w/ the gas smell. Have u checked under the car and in the engine compartment for evidence of gas leaks? Keep in mind that gas evaporates rather quickly, so it can be difficult to spot a leak. Put a large piece of cardboard under the car, and check it for wet spots or stains after parking. Let me know how u make out and if u need further help.
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I have a similar problem. Instead of gas, I smell fumes or emission, and the check engine light is on. I went to an auto parts store. They scanned the computer, and it read one of the sensors needs checking. Do you have an answer please. Car is 2002 Nissan, Sentra 1.8 engine, automatic.
Thank you in advance.
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