2002 Nissan Sentra got a p0430 code

2002 NISSAN SENTRA
127,000 MILES • 4 CYL • FWD • AUTOMATIC
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ECKOE760
  • MEMBER
  • 4 POSTS
I got a p0430 code and i wanna make sure it is not my cat thats gone wrong. i want to check the o2 sensors but i dont know what the voltage should be while on the car and warmed up. can you help me by telling me how i can test them and what the voltage should be? also what else i can test to make sure its not my cat?
Feb 9, 2010 at 1:38 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
It should be between 0.4 and 0.5 at normal operating temp and running at 2000 RPM's.

Anything below 0.4 is lean and above 0.5 is a rich mixture.

Let me know if this helps, and thanks for using 2carpros.com.

Joe
Feb 10, 2010 at 12:21 AM
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