2003 m45 starts then craps

Forum for Infiniti M35 and M45, and Nissan Fuga owners.
User avatar
kp1
Posts: 71
Joined: Sat Mar 13, 2010 9:28 am
Car: 2003 Infiniti M45

Post

Had this problem for a little while now but today it happen 6 times use to happen once and a while but when I start my car it turns on then struggles to stay on then just shuts down have to restart it again any insight on what it could be has 112000 miles on it starter ? Not the batter new battery new exaust


EdBwoy
Moderator
Posts: 3352
Joined: Tue Dec 25, 2012 12:47 am
Location: Indiana, USA
Contact:

Post

I don't think it's the starter if the car actually turns over.
Idle air control issues
- Does the car act any different if you jab the gas pedal at start up?
- Fewer problems when started cold, worse when warm (doesn't seem to be the problem here)

Have you ever cleaned your MAF?

User avatar
kp1
Posts: 71
Joined: Sat Mar 13, 2010 9:28 am
Car: 2003 Infiniti M45

Post

If I jack the gas it breaks threw sometimes and will start yes .. And what's a maf? I'm gonna see if I can record it today if it happens and post it here

User avatar
Ilya
Moderator
Posts: 9205
Joined: Fri Apr 23, 2010 11:20 pm
Car: 2011 M56x but I spend a lot of time on my 2015 Kawasaki Vulcan S. Former owner of a 2007 M35x. Also take care of my wife's 2016 QX60.
Location: Charlotte, NC
Contact:

Post

MAF sensor = mass airflow sensor

Be careful cleaning it and use ONLY MAF cleaner (can be found in your parts store such as Advance Auto). Nissan/Infiniti MAF's are VERY sensitive and can be easily damaged if dropped or if cleaned improperly. They are $300 or so new last I checked.

I broke my MAF by using a K&N filter. It's oil got onto the MAF causing issues and then when I tried to clean it, it didn't work so good after lol. So, now, I stick to non-oil based filters.

Costee
Posts: 336
Joined: Wed Oct 24, 2012 5:14 pm
Car: 2006 Infiniti M45 Sport
2012 Nissan Murano SL
Location: Lagos, Nigeria

Post

Scan for codes.

User avatar
kp1
Posts: 71
Joined: Sat Mar 13, 2010 9:28 am
Car: 2003 Infiniti M45

Post

no codes on it I'm gonna hold off on it and wait till it becomes more of a issue

Costee
Posts: 336
Joined: Wed Oct 24, 2012 5:14 pm
Car: 2006 Infiniti M45 Sport
2012 Nissan Murano SL
Location: Lagos, Nigeria

Post

kp1 wrote:no codes on it I'm gonna hold off on it and wait till it becomes more of a issue
Yes, that's logical.It could be many things actually, not least idle air concerns. I had a recent similar issue on an X-Trail. It turned out that the throttle body driver in the ecm was bad. No codes.

User avatar
kp1
Posts: 71
Joined: Sat Mar 13, 2010 9:28 am
Car: 2003 Infiniti M45

Post

Thanks for feedback once I get to problem ill post it

Costee
Posts: 336
Joined: Wed Oct 24, 2012 5:14 pm
Car: 2006 Infiniti M45 Sport
2012 Nissan Murano SL
Location: Lagos, Nigeria

Post

One more thing: the fuel pump. Have that checked too.


Return to “Infiniti M35 and M45 Forum”