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o2 sensor questions 850 1995

posted by  bheuchert on  Wed Dec 4 06:49 CST 2002
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Here are a few questions as it looks like I will need to replace my 02 sensor: Can anyone tell me the procedure for checking the codes on this and secondly, if there is an aftermarket sensor that will work knowing there are 2 sensors on the 95 855.
-Does the codes tell you which sensor is causing the light to go on?
-Can these be cleaned or do tehy have to be replaced?
-The original are Bosch are there alternatives?
- Are they easily replaced or do I need to worry about the installation of them and the heat of the exhaust welding the new one in place or will it require a sealant that will allow them to be removed down the road.
-I did not notice a big change in gas mileage so should I ignor light?





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