2002 Nissan Sentra car has trouble starting

Tiny
ECKOE760
  • MEMBER
  • 2002 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 127,000 MILES
My sentra has very big problem starting. It has a code of p0430, p0300, and I just recently got a code of p0174. I need help. I don't really know where to start and check. I've been told that the cat doesn't usually go bad. I want to check my o2 sensors but don't know how. Please help! What can I check or what can be the problem?
Monday, February 1st, 2010 AT 5:08 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi eckoe760,

Thank you for the donation.

The chart shows possible causes for all the 3 codes and they are most likely to be related. The MAF is known to cause such codes and difficult starting, I would suggest checking/testing that first.


https://www.2carpros.com/forum/automotive_pictures/192750_DTCP0171_174_02SentraFig58_1.jpg



https://www.2carpros.com/forum/automotive_pictures/192750_DTCP0300_02SentraFig75_1.jpg



https://www.2carpros.com/forum/automotive_pictures/192750_DTCP0420_430_02SentraFig101_1.jpg

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Tuesday, February 2nd, 2010 AT 11:13 AM

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