o2 question do the gaskets and bolts come with the sensor?
09-22-2010, 02:53 PM
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o2 question do the gaskets and bolts come with the sensor?
Hey guys. Listen you know I searched! With that being said I was driving today and I got the old CEL, came to be a P0130, bank 1 sensor 1. I cleared a P0420 a few years back and never came back, and I could have sworn it was also bank 1 sensor 1. Anyways, the lights gone but I'm sure with 230k on the odo its time for a new one haha. Anyways, especially with this question I searched a good bit but I'm unaware of the specific parts to order and from whom. I need the sensor, gasket and new bolts, don't know if the OEM pn includes all 3, it seems the URD site is just the sensor, so would I have to go to the dealership for the gasket and bolts? If so I can't find individual part numbers for those. Thanks for the time to deal with this beaten subject, I must ask before you trample on me for this...
10-02-2010, 09:38 AM
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Both the URD and OEM sensors come with the gasket--they are identical. The nuts are separate and are Toyota part # 90179-08059. I believe any basic M8-1.25 stainless steel nut would work. Get some copper anti-seize, too. Get the correct Denso part number for your rig from www.urdusa.com and then order a DENSO sensor from them or whomever has the best deal. Amazon usually has the best price, but their application info is sketchy.
P0420 is Cat efficiency below threshold. It can be either sensor, but is usually the rear (Sensor 2). The only codes that say Sensor 1 or 2 are the ones that specifically relate to out-of range, open, or short readings from that sensor. Other codes are more vague. That said, P0420 is the only code thrown by Sensor 2 that is not specific to Sensor 2. Sensor 2 has no effect on engine performance, it just sets codes. It is only there to be sure the cat is working to spec.
In your case, you need a front sensor.
P0420 is Cat efficiency below threshold. It can be either sensor, but is usually the rear (Sensor 2). The only codes that say Sensor 1 or 2 are the ones that specifically relate to out-of range, open, or short readings from that sensor. Other codes are more vague. That said, P0420 is the only code thrown by Sensor 2 that is not specific to Sensor 2. Sensor 2 has no effect on engine performance, it just sets codes. It is only there to be sure the cat is working to spec.
In your case, you need a front sensor.
Last edited by TheDurk; 10-02-2010 at 09:55 AM.
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