code P 1402 on a 1998 Nissan Maxima

Question

I have a 1998 Nissan Maxima that is having a hard time starting. It shows codes P1402 and P0443. I have changed the max air flow sensor, starter, fuel pump, plugs, fuel filter, battery, cables to battery, and air filter, all within the last week and a half. We reset the codes after the mechanic changed the fuel pump today and he said I was good to go. Well, codes popped back on and I still had a hard time getting the car to start. Any advice, suggestions, or do I need to get a bigger hammer?

Answer 1

The P1402 means that there is a problem with the EGR system. The parts you replaced have nothing to do with the EGR system. You should start by cleaning the EGR valve.

Read more: https://www.autocodes.com/p1402_nissan.html

The P0443 is for the EVAP system.

Read more: https://www.autocodes.com/p0443_nissan.html

The EVAP system should not cause the hard start problem, but the EGR valve may cause that problem.