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ignition misfire
p1440 is a small leak in the evap system the most common issue is a gas cap that doesn't seal correctly (don't buy a gas cap from a parts store use an original cap from the dealer) next inline is the vent control valve and canister.
Service codes in cars help a mechanic to understand what issue the car is having. For example for the Infiniti Q45 the code u3fff could mean a sensor needs to be replaced.
what does P0466 code EVAP Emission Control System Vent Circuit Malf. mean for a 1996 infiniti i30 Vehicle?
code for a 2000 kia sportage p1115
Infiniti
Assuming you mean Infiniti, Infiniti is a division of Nissan.
Trouble code P0750 means:Shift solenoid A malfunction
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code p1633 means: Vehicle Speed Signal
Trouble code P0171 means:System too lean (Bank 1)
Trouble code P0303 means:Cylinder 3 misfire detected