CHEVY OXEGENSENSOR CODE P0430

1999 Chevrolet Suburban

Tiny

jjfitz

October, 26, 2010 AT 1:59 PM

Engine Performance problem
1999 Chevy Suburban V8 Four Wheel Drive Automatic

I need to know which sensor is bank 2, I have 4 sensors which one is it?

FOUND 60 RELATED QUESTIONS

3 Answers

Tiny

Wrenchtech

October, 26, 2010 AT 3:28 PM

Where did you get the idea that PO430 is an oxygen sensor code. That is for bad Catalyst efficiency on bank 2 which is almost always a bad Catalytic Converter.

Tiny

jjfitz

October, 26, 2010 AT 3:41 PM

I was told by the mechanic that inspected my truck. You said almost always a bad catalytic converter, what else could it be?

Tiny

Wrenchtech

October, 26, 2010 AT 3:45 PM

I've seen it be something else only one time and that was a crack in the exhaust between the 2 oxygen sensors. There is a lot of criteria it has to meet to set that code and it's rarely wrong. There are always exceptions to everything.

Please login or register to post a reply.

Crank Angle Sensor Replacement Mercedes Benz
Fuel Injector Replacement Ford 5.4L V8
Oxygen Sensor Replacement Honda Civic 1996-20