Diode for the O2 sensors DOES NOT WORK
#1
Diode for the O2 sensors WORKS
2001 Audi A6 2.7T
I tried this: https://www.audiworld.com/tech/eng53.shtml
and it works GREAT! Try it!
I tried this: https://www.audiworld.com/tech/eng53.shtml
and it works GREAT! Try it!
Last edited by badinstincts; 03-18-2012 at 01:13 PM.
#2
AudiWorld Super User
Did you try reversing the diode? Did you put it in backwards? Too high resistance generally indicates the diode is in backwards.
#4
I actually just did that as well, my dad is a senior technician at a certain company so he knows what he's doing, (when it comes to the soldering, well and he's a good mechanic) but it gives me 4 codes, 2 for one sensor and other two for the second sensor.. just "o2 circuit" and "No activity" for both. Silver side is facing ECU, heat shrink added.. very well soldered.. I don't understand why its not working. But I did unplug my battery just now to see maybe it will re-set all my remembered readings, and maybe it was just seeing that somehow my sensors work perfect out of nowhere. Then later after I will be leaving where I will plug them in and it should be all reset, then it will run on factory settings until its learns my driving..
#5
It's basic setting 46 & 47, not measurement block. Engine must be around 2000 RPM if I remember correctly and fully hot. Also, other tests have to be OK before that test starts.
#6
yea, first you go to measuring blocks and then you switch to basic settings, or am I supposed to do them both at the same time?
It would be cool if someone could put a step by step to pass all the test without having to drive at all.
Please... Anyone?
It would be cool if someone could put a step by step to pass all the test without having to drive at all.
Please... Anyone?
#7
https://www.audiworld.com/forums/sho....php?t=1477650
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#8
why dont you just pay to fix the correct way?
the rear O2 sensors are critical for measuring catalyst efficiency, IE are your cats bad or not. are they mission critical? no, but why not save up and just fix it right. **** you can by the generic bosch o2 sensors and wire them yourself for under 100 dollars!
the rear O2 sensors are critical for measuring catalyst efficiency, IE are your cats bad or not. are they mission critical? no, but why not save up and just fix it right. **** you can by the generic bosch o2 sensors and wire them yourself for under 100 dollars!
#9
I have no pre cats... No SAI, I can only pass emissions if I revv up my engine while still cool to around 2500-3000rpm and do the test on block 77. my rear o2 sensors pass because I have the bungs on them (spark plug non foulers, drilled out)
#10
AudiWorld Super User
You mean you can only cheat the emissions testing procedure which is really only a check on the OBDII codes.
This is the kind of stuff that might lead back to dynamometer/tailpipe testing in high-pollutant areas (and MD might just lead the way although they scrapped their dynos awhile ago) if the current OBDII plug-ins are found to be inaccurate.
This is the kind of stuff that might lead back to dynamometer/tailpipe testing in high-pollutant areas (and MD might just lead the way although they scrapped their dynos awhile ago) if the current OBDII plug-ins are found to be inaccurate.