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2001 Outback Check Engine Light-Catalytic Converter??
Posted 20 July 2009 - 09:57 AM
In all fairness to the deal, they did say that the use of BG 44K was a long shot, but the alternative is a costly $1800 repair, which I assume is a new catalytic converter. So I am hoping to get some thoughts, ideas, comments on whether to proceed with the repairs or not. It makes me wonder what caused the problem in the first place and will it happen again to a new converter. I would like to keep this vehicle on the road and don't want to cause permanent damage, but the estimate makes me wonder if it is a good investment. Your ideas would be most welcome and helpful.
Posted 20 July 2009 - 10:17 AM
The computer has no way of knowing if the bad data is because the Catalytic Converter is bad, or if the Sensor itself is faulty. Sensors go bad alot. Catalytics on the other hand, well they are chunks of metal with no moving parts......not really prone to failure ya know.
Replace the sensors first. 90% of the time, that clears this up.
Then if you do need a new cat(s), you have brand new sensors ready to go in them.
Posted 20 July 2009 - 10:27 AM
A 2001 model should have more refined OBDII diagnostics algorithms than 1995 (the 1st year), and the front sensor is a wideband type, but who knows. The sensor waveform can be tested, but if this is something you'd have to pay for (or to buy proper equipment for), you can just try and replace the sensor, after inspecting the pipework. At this mileage, it wouldn't be a waste. Besides, you'd still want to put a new one in if you were replacing the converter.
OK, I am slow to type.
Edited by avk, 20 July 2009 - 10:32 AM.
Posted 20 July 2009 - 10:37 AM
Posted 20 July 2009 - 10:55 PM
To continue to use it is just a waste of money. At least your fuel system got a good cleaning out of the three cans you did use.
So is the O2 sensor... But instead of creating cleaner exhaust it creates a small amount of electricity.
Catalytics on the other hand, well they are chunks of metal with no moving parts...
I'd change both O2 sensors. Recommended change interval for those is usually 100k miles anyway.
What other maintenance have you had done recently? Has the fuel filter been changed? Spark plugs? Plug wires? Coolant flush? Anything like that?
Posted 20 July 2009 - 11:40 PM
replace the front O2 sensor first with one from OE. You are at the right mileage to have a bad front O2 sensor.
The dealer is just lazy in not properly diagnosing the issue. Its like saying you need tires so replace the car. There is some logic to it, but its just cheaper to replace the tires.
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