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Several years back I was convinced that it's just better to replace certain parts with dealer supplied parts vs. parts from O'Reilly's. Not like belts and brake pads but electronic type parts. Anyway, our latest issue with the Infiniti has me wanting to try a less expensive repair shop
The wife got a code P0420 on her 2011 m37. Online says it can be either the cat or most likely o2 sensor. I went to the dealer to buy the o2, $280, but before getting it, decided to talk to a service advisor to see what the cost is for them to replace it.
He says he doubts it's the sensor but more likely the converter has failed or has a crack. There is some cross brace that mounts to the exhaust to aid with vibration that sometimes hits something underneath and will crack both cat converters. Then he proceeds to tell me that usually the sensors will need replacing too if they can't get them out or if they're reading out of range. At this point my BS meter is pegged out. I've heard of people being told the entire "system" is trashed and walk out getting raped. I'm trying to prevent that from happening.
So my dilemma is whether to take it to a more affordable shop or if it's advisable to stick with Infiniti parts. The converter is about $700, 3hrs at $190/hr, and about $280 x 2 if they "can't get the sensors out". That's for one side! The only thing they left out was that I needed to add exhaust fluid.
Added note: he did say there is a different code for the o2 sensor, which I'm not getting. He didn't know it off the top of his head but said it would be like P0200 or something similar. Best I could find is P2A00 which kinda supports what he's telling me.
The wife got a code P0420 on her 2011 m37. Online says it can be either the cat or most likely o2 sensor. I went to the dealer to buy the o2, $280, but before getting it, decided to talk to a service advisor to see what the cost is for them to replace it.
He says he doubts it's the sensor but more likely the converter has failed or has a crack. There is some cross brace that mounts to the exhaust to aid with vibration that sometimes hits something underneath and will crack both cat converters. Then he proceeds to tell me that usually the sensors will need replacing too if they can't get them out or if they're reading out of range. At this point my BS meter is pegged out. I've heard of people being told the entire "system" is trashed and walk out getting raped. I'm trying to prevent that from happening.
So my dilemma is whether to take it to a more affordable shop or if it's advisable to stick with Infiniti parts. The converter is about $700, 3hrs at $190/hr, and about $280 x 2 if they "can't get the sensors out". That's for one side! The only thing they left out was that I needed to add exhaust fluid.
Added note: he did say there is a different code for the o2 sensor, which I'm not getting. He didn't know it off the top of his head but said it would be like P0200 or something similar. Best I could find is P2A00 which kinda supports what he's telling me.
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