SPONSORED LINKS

1997 Nissan Truck PO301 error code

Tiny
COPIERGUY1
  • MEMBER
  • 1997 NISSAN TRUCK
Engine Mechanical problem
1997 Nissan Truck 4 cyl Two Wheel Drive Manual

1197 nissan pickup. Blowing black smoke, but not all the time. Code reader says po301 error. #1 cylinder misfire. Today it started doing it more. I am at a loss. HELP!
SPONSORED LINKS
Tuesday, September 28th, 2010 AT 4:43 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Specific cylinder misfire-start by checking the sparkplug, compression and injector for cyl no.1

Probable causes of an engine running rich are as follows:

1. Excessive fuel pressure can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+2
Tuesday, September 28th, 2010 AT 5:03 PM

Please login or register to post a reply.

Sponsored links