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brownjeff, ASE Certified Technician
Category: Car
Satisfied Customers: 13886
Experience:  17 years experience, ASE certified, dealership certified, Service Manager for 15 years,
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1997 Infiniti QX4 Code 0440

Customer Question

1997 Infiniti QX4
Code 0440
Submitted: 6 years ago.
Category: Car
Expert:  brownjeff replied 6 years ago.

This is a code for an evaporative leak (fuel vapor) could be as simple as a loose can to one of the sensor in the system. Also there are rubber hoses in the system that crack and leak which will cause this. Make sure the fuel cap is on tight and check the hoses. Here is the system in question:


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Customer: replied 6 years ago.
Thanks brownjeff. I sent a tip.
Expert:  brownjeff replied 6 years ago.






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