R56 oxygen sensor replacement
#1
05-04-2015, 03:37 PM
oxygen sensor replacement
My car failed to pass smog check due to some reasons such as evaporated system and oxygen sensor are not ready.
This time, I plan to replace oxygen sensor.
And I have questions about that.
My question are.
Should I replace front sensor(bank1) and rear sensor(bank2) both?
In case of oxygen sensor heater has been passed, and oxygen sensor has been failed, which sensor should I replace right now?
Are they the same sensors?
Thank you.
This time, I plan to replace oxygen sensor.
And I have questions about that.
My question are.
Should I replace front sensor(bank1) and rear sensor(bank2) both?
In case of oxygen sensor heater has been passed, and oxygen sensor has been failed, which sensor should I replace right now?
Are they the same sensors?
Thank you.
#2
05-05-2015, 10:02 AM
When you say those systems are not ready, do you mean you had a code,
had it cleared, and the car hasn't driven enough to be ready to read for
emissions testing, or do you have a CEL lit, or something else?
It would be very helpful to know what codes are responsible, as there are
separate ones for each oxygen sensor, and several different codes that relate
to the evaporative system.
The car might just need to be driven a full cycle to be ready to read.
Try this:
-start engine, idle cold~2 min. 10 sec. -Evap leak detection is evaluated
-accelerate to 20-30 MPH. Maintain steady speed for 3 min.15 sec. - Establish closed loop operation- o2 sensor responce timeand switching time is monitored
-accelerate to 40-60 MPH, maintain steady speed for 15 min. - catalytic converter efficiency is evaluated.
-come to stop, idle for 5 min. - tank leakage is evaluated.
Don't expect to be able to accomplish all of this in 1 trip. I hope this helps
had it cleared, and the car hasn't driven enough to be ready to read for
emissions testing, or do you have a CEL lit, or something else?
It would be very helpful to know what codes are responsible, as there are
separate ones for each oxygen sensor, and several different codes that relate
to the evaporative system.
The car might just need to be driven a full cycle to be ready to read.
Try this:
-start engine, idle cold~2 min. 10 sec. -Evap leak detection is evaluated
-accelerate to 20-30 MPH. Maintain steady speed for 3 min.15 sec. - Establish closed loop operation- o2 sensor responce timeand switching time is monitored
-accelerate to 40-60 MPH, maintain steady speed for 15 min. - catalytic converter efficiency is evaluated.
-come to stop, idle for 5 min. - tank leakage is evaluated.
Don't expect to be able to accomplish all of this in 1 trip. I hope this helps
#3
05-05-2015, 10:11 AM
I havent seen any code yet.
But I have driven this car more than 100 miles.
I don't think I need to drive this much to reset the computer and let the computer reads.
So I think I may need to try to replace o2 sensor.
BTW, I will try the things you recommend to me today.
Thank you.
But I have driven this car more than 100 miles.
I don't think I need to drive this much to reset the computer and let the computer reads.
So I think I may need to try to replace o2 sensor.
BTW, I will try the things you recommend to me today.
Thank you.
When you say those systems are not ready, do you mean you had a code,
had it cleared, and the car hasn't driven enough to be ready to read for
emissions testing, or do you have a CEL lit, or something else?
It would be very helpful to know what codes are responsible, as there are
separate ones for each oxygen sensor, and several different codes that relate
to the evaporative system.
The car might just need to be driven a full cycle to be ready to read.
Try this:
-start engine, idle cold~2 min. 10 sec. -Evap leak detection is evaluated
-accelerate to 20-30 MPH. Maintain steady speed for 3 min.15 sec. - Establish closed loop operation- o2 sensor responce timeand switching time is monitored
-accelerate to 40-60 MPH, maintain steady speed for 15 min. - catalytic converter efficiency is evaluated.
-come to stop, idle for 5 min. - tank leakage is evaluated.
Don't expect to be able to accomplish all of this in 1 trip. I hope this helps
had it cleared, and the car hasn't driven enough to be ready to read for
emissions testing, or do you have a CEL lit, or something else?
It would be very helpful to know what codes are responsible, as there are
separate ones for each oxygen sensor, and several different codes that relate
to the evaporative system.
The car might just need to be driven a full cycle to be ready to read.
Try this:
-start engine, idle cold~2 min. 10 sec. -Evap leak detection is evaluated
-accelerate to 20-30 MPH. Maintain steady speed for 3 min.15 sec. - Establish closed loop operation- o2 sensor responce timeand switching time is monitored
-accelerate to 40-60 MPH, maintain steady speed for 15 min. - catalytic converter efficiency is evaluated.
-come to stop, idle for 5 min. - tank leakage is evaluated.
Don't expect to be able to accomplish all of this in 1 trip. I hope this helps
#4
05-05-2015, 10:30 AM
6th Gear
What does the printout sheet say about your evaporated system? Did it say an oxygen sensor faulty? If it did it should have told you which one was not ready. If you have no codes this should show up as codes in you ECU some of which only a Mini scanner can read, I wouldn't suggest throwing parts at the problem without verifying what the actual problem is. More troubleshooting is needed before you start replacing parts. Your gas cap is part of the evaporative system.
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