R50/53 O2 sensors / ECU / Harness problems???
#1
O2 sensors / ECU / Harness problems???
I am having an intersting issue. and im not sure where its comeing from.
a while back i had replace both o2 sensors, they worked great for a week. then both died... 0v on both i got them from rock auto at like 90 each. and was way to late to return them. i thought maybe they were both duds, but both?
i put the originals back in everything works great.
fast forward>>>>> i change my exhasut system. header back.
OBX header, Magnaflow cat, Alta catback;
I buy one new "genuine mini" o2 from ECS for only the front sensor, works great voltages switch back and forth two weeks later dead... 0v. this happend on a saterday night, and on monday going to work it starts working again half way there.
i go home clear the code, and im back at a 0v and no response from the sensor. i drive around for 3 or 5 miles and it starts working again.
and every time i clear codes from the ecu the o2 sensor stops working. for a short period of time. usually takes a few miles. and stay working.
i can not keep thouging money at this, it's pissing me off. any ideas?
i am almost ready to say screw it and drop it off at a dealer and be like fix this.
a while back i had replace both o2 sensors, they worked great for a week. then both died... 0v on both i got them from rock auto at like 90 each. and was way to late to return them. i thought maybe they were both duds, but both?
i put the originals back in everything works great.
fast forward>>>>> i change my exhasut system. header back.
OBX header, Magnaflow cat, Alta catback;
I buy one new "genuine mini" o2 from ECS for only the front sensor, works great voltages switch back and forth two weeks later dead... 0v. this happend on a saterday night, and on monday going to work it starts working again half way there.
i go home clear the code, and im back at a 0v and no response from the sensor. i drive around for 3 or 5 miles and it starts working again.
and every time i clear codes from the ecu the o2 sensor stops working. for a short period of time. usually takes a few miles. and stay working.
i can not keep thouging money at this, it's pissing me off. any ideas?
i am almost ready to say screw it and drop it off at a dealer and be like fix this.
#2
I would check the Oxygen sensor connection from the sensor plug, sounds like its intermediate. I don't understand why both would not receive signal. I would also check the electrical connection in the harness from the oxygen sensor.
I have seen small rodents like to chew on the MINI wiring harness and such. You might have to have MINI read the system for faults, they can read more in-depth. Like PDC sensor faults and such.
Thanks
I have seen small rodents like to chew on the MINI wiring harness and such. You might have to have MINI read the system for faults, they can read more in-depth. Like PDC sensor faults and such.
Thanks
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Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
#3
ill check the wirring on the engine harness side. the wires on the o2 sensor look in perfect conidition. and the connectors them selfs look ok. i cleaned them out too just in case.
and if this problem persists im going ot have to have mini look at it. im sure their diagnostic computer is a heck of a lot better than my Bavarian technic System.
and if this problem persists im going ot have to have mini look at it. im sure their diagnostic computer is a heck of a lot better than my Bavarian technic System.
#4
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