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2002 Nissan Sentra got a P0430 code

Tiny
ECKOE760
  • MEMBER
  • 2002 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 127,000 MILES
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?
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Tuesday, February 9th, 2010 AT 1:38 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,320 POSTS
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
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Wednesday, February 10th, 2010 AT 12:21 AM

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