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HELP! Gallardo O2 Sensor Replacement/Solutions For CEL 1-5,6-10


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As previously mentioned I am suffering from repeated O2 sensor failures as I have already replaced them 7 times thus far and now need an 8th. I have an 05 Gallardo with Fabspeed cat-bypass and LOC exhaust. I do not know why this keeps happening and all I can do is go by what the Lamborghini dealership/service tells me which is that the design of the LOC exhaust is the sole cause of repeated failure due to excessive moisture/carbon build-up on the sensors caused by exhaust. Many lambo owners disagree that LOC is the cause but the truth is that I just want to find a solution and nothing more. So after researching I am really hoping I can get some suggestions on the following questions:

 

1. My lambo dealership just quoted $673 to replace 2 sensors, of which one is the repeat offender. If I replace them myself, what should I pay for the sensors and where should I get them? The part number that the dealership always shows for the O2 replacement sensor is 06A906262AT which begs the questions:

2. The dealership said this time that two O2 sensors failed. Does my 04 gallardo with fabspeed cat-bypass and LOC exhaust only have two O2 sensors then? I "thought" that there is one sensor before and after the cat on each of the exhaust pipes which would mean 4 sensors but I dont know if that changes with cat-bypass pipes and LOC exhaust.

 

3. Would changing the O2 sensors myself be very difficult? Are we talking 10 hours or 2? Is there anything other than the actual sensors I would need to do this(specific tools, other parts such as O2 sensor socket)?

 

4. Lastly, I am VERY interested to hear thoughts from everyone on this thing I just found when looking for solutions: http://www.magnumtuning.com/en/detail/ez-c...do/5-0l-v10-40v - This gadget supposedly stops this from happening in the first place and it's cheap but just sounds too good to be true. Does anyone have any experience/thoughts on this???

 

 

 

 

I sincerely appreciate everyone's help!

 

 

 

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Xref parts list

 

ACI - AVESA SLS-13319

AUDI 06A 906 262 AT

BBT OXY452.026

FISPA 90170

HOFFER 7481549

MEAT & DORIA 81549

METZGER 0893067

METZGER 0893088

PIERBURG 7.05270.91.0

PIERBURG 7.05271.02.0

SEAT 030 906 262 M

SEAT 03C 906 262

SIDAT 90170

SKODA 03C 906 262

SKODA 047 906 265 B

SKODA 047 906 265 C

SKODA 06A 906 262 BG

SKODA 06A 906 262 F

VDO A2C59513319Z

VEMO V10-76-0060

VEMO V10-76-0083

VW 022 906 262 F

VW 030 906 262 M

VW 03C 906 262

VW 06A 906 262 BG

VW 06A 906 262 CM

VW 06A 906 262 CN

VW 06A 906 262 CT

VW 06A 906 262 F

BOSCH 0 258 005 730

BOSCH 0 258 006 201

BOSCH 0 258 006 251

BOSCH 0 258 006 270

BOSCH 0 258 006 300

BOSCH 0 258 006 316

BOSCH 0 258 006 392

FACET 10.7920

FAE 77148

FAE 77201

FAE 77202

MAGNETI MARELLI 460001885010

NGK 1885

VDO A2C59513319

 

 

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Are you using o2 spacers?

I believe spacers were put on long ago. However, do you have anything you can recommend? Where would I get proper spacers for and do they go on all 4 sensors?

 

Xref parts list

 

ACI - AVESA SLS-13319

AUDI 06A 906 262 AT

BBT OXY452.026

FISPA 90170

HOFFER 7481549

MEAT & DORIA 81549

METZGER 0893067

METZGER 0893088

PIERBURG 7.05270.91.0

PIERBURG 7.05271.02.0

SEAT 030 906 262 M

SEAT 03C 906 262

SIDAT 90170

SKODA 03C 906 262

SKODA 047 906 265 B

SKODA 047 906 265 C

SKODA 06A 906 262 BG

SKODA 06A 906 262 F

VDO A2C59513319Z

VEMO V10-76-0060

VEMO V10-76-0083

VW 022 906 262 F

VW 030 906 262 M

VW 03C 906 262

VW 06A 906 262 BG

VW 06A 906 262 CM

VW 06A 906 262 CN

VW 06A 906 262 CT

VW 06A 906 262 F

BOSCH 0 258 005 730

BOSCH 0 258 006 201

BOSCH 0 258 006 251

BOSCH 0 258 006 270

BOSCH 0 258 006 300

BOSCH 0 258 006 316

BOSCH 0 258 006 392

FACET 10.7920

FAE 77148

FAE 77201

FAE 77202

MAGNETI MARELLI 460001885010

NGK 1885

VDO A2C59513319

 

I'm not sure what your reply means exactly...

 

does anyone have experience with the o2 sensor trick mentioned above?

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He provided all the cross referenced part numbers for various brands that should be drop in replacements.

 

Oh I see. So does that mean all of those parts would work to replace the OEM lambda sensor???

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  • 2 years later...
Oh I see. So does that mean all of those parts would work to replace the OEM lambda sensor???

 

I am also curious if the cross-referenced list means that any of those parts will work to replace the OEM sensors in a gallardo? Also, is the same sensor used for the pre-cat and post-cat locations?

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What are the exact fault codes does your car have?

 

LOC exhaust on 04-05 never created a fault with O2 sensors. 06 and up cars would have a fault due to misfire sensor changing and the ability to pick up the increased exhaust flow causing a false fault. The solution was to have another version of LOC exhaust that kept the exhaust flaps with a modification to them.

 

Its possible the straight pipes you have are causing the O2 faults as the front to rear sensor is not seeing a difference in O2 reading like they do with a CAT. This is when the adapter comes in play I believe. The adapter causes the O2 sensor to not set as deep in the exhaust flow tricking its O2 reading. I belive these are installed for the rear sensors. (not 100% sure as I have never installed them or fully researched this mod).

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