Question

2004 Nissan Maxima 3.5L, can a bad fuel pump relay cause car to cut off?

Answer 1

Hi there

A bad relay can cause the issue, but typically a bad relay will prevent the engine from starting in the first place. I see the code you have is P0455, this code is for a gross evap leak in the emissions system and will not cause the car to cut off.

Here is some info on the code.

P0455 NISSAN - EVAP Control System Gross Leak Detected
Read more: https://www.autocodes.com/p0455_nissan.html