R50/53 Oxygen Sensor Replacement?
#1
Join Date: Feb 2005
Location: As far away from Florida as I can get.
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#2
#3
Join Date: Feb 2005
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They are saying front and rear. Here is the link to the web page:
http://www.minicarparts.net/Parts/M3095.cfm
http://www.minicarparts.net/Parts/M3095.cfm
#6
#7
unless your getting an SES light or noticing some drivablity problems it really isnt worth the cost of replacing the sensors. the ecu is able to adjust to the degradiation of the sensor and once the sensor is getting worse youll start to notice difference in engine operation and possible getting lean or rich codes before youll get an o2 operation code. it is also sometimes recommended that if you replace the upper sensor you should also replace the lower sensor at the same time. has something to due with the learning curve of the ecu. i wouldnt change the sensors unless it is necessary. the warrenty for the sensors is 100k i believe.
sorry for the mildly long post
sorry for the mildly long post
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#11
My "check engine" light has intermittantly been on. I called the MINI service dude and he said the change of winter to summer fuel is messing up O2 sensors. Sometimes I have had rough idling. Is this something someone mechanically challenged (me) can change out?
#13
#14
Replacement Oxygen sensor
Replaced my pre-cat sensor with a universal 4-wire. No problem with removing and replacing the sensor. It came with a nice splice in kit to attach to the original connector.
The details: Bosch 15729. O'Reilly had it listed for a 1997 AMC-JEEP grand Cherokee. The irony of that! My out-the-door price was $63.59.
The details: Bosch 15729. O'Reilly had it listed for a 1997 AMC-JEEP grand Cherokee. The irony of that! My out-the-door price was $63.59.
#16
#18
Replaced my pre-cat sensor with a universal 4-wire. No problem with removing and replacing the sensor. It came with a nice splice in kit to attach to the original connector.
The details: Bosch 15729. O'Reilly had it listed for a 1997 AMC-JEEP grand Cherokee. The irony of that! My out-the-door price was $63.59.
The details: Bosch 15729. O'Reilly had it listed for a 1997 AMC-JEEP grand Cherokee. The irony of that! My out-the-door price was $63.59.
http://www.partsamerica.com/productd...pe=291&PTSet=A
And FYI, $125-150 is average for the most part. Some get up into the $250+ range with an OE Honda wideband 5 wire the most I've ever seen at like 400 I think.
#19
#20
Join Date: Feb 2007
Location: Washington. No, the other one.
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More often than not, the O2 sensor works fine (with a little help from the ECU) then fails completely. If the SES light isn't on and you don't have a code for O2 sensor failure, don't worry too much about it. Replacement can be a minor PITA, but it's not an emergency when it does fail. Power is degraded somewhat, mileage goes in the toilet (wait, at these fuel prices, maybe that is an emergency). The car goes into "Limp-home mode", but is driveable.
#21
Over time they slowly lose metering ability and that comes with power off a little and slightly less gas mileage but then they usually give up the ghost fairly quickly after that. Once they go, the car just runs massively rich. It's nothing bad, just kinda runs like crap and mileage drops off quick.
#22
They are saying front and rear. Here is the link to the web page:
http://www.minicarparts.net/Parts/M3095.cfm
http://www.minicarparts.net/Parts/M3095.cfm
The post-cat sensor does nothing other than monitor the health of the cat itself. So, absolutely no benefit in replacing the post-cat (rear) sensor unless it fails. The post-cat sensor is sort of like a qaulity control device. last check before things go out...