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jb92563 · 09-23-2015, 11:09 AM

Since my P0430 code comes and goes, borderline, I thought that fresh sensors may be just enough to pass the smog.

I realize what you are saying is true but I need a slight nudge to pass the smog and since this has occured AFTER a major smoke fest with the AOS going out I feel that carbon from all that oil is what may be hampering/plugging my cat and sensors.

I'll check the sensor Voltage curves and see if I can confirm what is happening.

In theory the Cats should last forever if they don't get plugged, fouled or broken ceramic matrix.

I take it the upstream O2 sensor voltage would be the nearly constant voltage and the downstream following the sine wave?

09-23-2015, 11:09 AM	#3
jb92563 Registered User Join Date: Apr 2012 Location: Riverside, CA Posts: 1,665	Since my P0430 code comes and goes, borderline, I thought that fresh sensors may be just enough to pass the smog. I realize what you are saying is true but I need a slight nudge to pass the smog and since this has occured AFTER a major smoke fest with the AOS going out I feel that carbon from all that oil is what may be hampering/plugging my cat and sensors. I'll check the sensor Voltage curves and see if I can confirm what is happening. In theory the Cats should last forever if they don't get plugged, fouled or broken ceramic matrix. I take it the upstream O2 sensor voltage would be the nearly constant voltage and the downstream following the sine wave? __________________ "It broke because it wants to be Upgraded " 2012 Porsche Performance Driving School - SanDiego region 2001 Boxster S, Top Speed muffler, (Fred's) Mini Morimotto Projectors, Tarret UDP, Short Shifter, Touch Screen Dual Din Radio, 03 4 Bow glass Top (DD & Auto-X since May 17,2012) Last edited by jb92563; 09-23-2015 at 11:13 AM.