P0448 INFINITI -

Question

I have A P440 EVAP Emission control systm malfuntion code and a P448 code EVAP emission control system vent circuit short on a 1999 Infiniti Q45. What do I need to do to fix it?

Thanks

Answer 1

Youb mean P1448 and P0440? There is no P0448 or P440 onfor your 1999 Infiniti Q45.

P0440 INFINITI - EVAP Control System Small Leak

Read more: https://www.autocodes.com/p0440_infiniti.html

P1448 INFINITI - EVAP Canister Vent Control Valve Open

Read more: https://www.autocodes.com/p1448_infiniti.html

You could start by inspecting the Vent Control Valve and gas cap.