Question

What these codes mean. My 1999 Infiniti G20 failed emission. How to fix it?

Code: p0400, p0440, p1447, p1448
What name of each part?

Answer 1

P0400 INFINITI - Exhaust Gas Recirculation Function- No/Low Flow Detected
Read more: https://www.autocodes.com/p0400_infiniti.html

P0440 INFINITI - EVAP Control System Small Leak
Read more: https://www.autocodes.com/p0440_infiniti.html

P1447 INFINITI - Evaporative Emission Control System Purge Flow Monitor
Read more: https://www.autocodes.com/p1447_infiniti.html

P1448 INFINITI - EVAP Canister Vent Control Valve Open
Read more: https://www.autocodes.com/p1448_infiniti.html