Hard to start

ANYDAYNOW

MEMBER
2013 NISSAN FRONTIER
2.5L
4 CYL
2WD
AUTOMATIC
109,000 MILES

Must cycle key on and off several times before truck will start, then it runs just fine for as long as you need it. Once its parked for a while (thirty minutes to an hour) then it is back to on and off and hoping it will start. I just bought it used last week. Code scanner showed C0100 code and said scanner would need update to interpret the code. Tried but could not update. TOPTAK-TP280 can. Checked plugs, okay and replaced airflow sensor. Nothing changed.

Saturday, January 20th, 2018 AT 9:13 PM

2 Replies

KHLOW2008

MECHANIC
41,814 POSTS

Difficult starting after engine has been turned off for a period of time are mostly caused by insufficient fuel pressure. Turning the key on and off helps to prime the the fuel pressure and enables starting.

I would suggest testing the fuel pressure and checking the fuel pump and pressure regulator.

Were you able to erase the trouble code? This code does not indicate a faulty part but rather a condition that fails to meet specifications.

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Sunday, January 21st, 2018 AT 9:42 PM

RENEE L

ADMIN
1,260 POSTS

Hi ANYDAYNOW,

Thank you for visiting 2CarPros. Here is a helpful link to an article from this site with step by step instructions and pictures explaining the process of checking the fuel system pressure, regulator and fuel pump in less than fifteen minutes:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

If you need further assistance please come back to the site we are always happy to help.

Kindest regards,

Renee
Admin

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Monday, January 22nd, 2018 AT 12:58 PM