LSU 4.9 Wideband Sensors

[Sprocket]

Waiting to pull the trigger on a pair of these. Any update on the expected arival of the firmware update for the LSU 4.9 sensors?

[MWfire]

I'm driving and testing lsu 4.9. So far works good, but a little bit of more time is needed to test it properly.

[gunni]

What did you have to do to make it work other then simply wire it in?

[MWfire]

Change one resistor and add one resistor to 5v.

[gunni]

Can you elaborate further on that?

[MWfire]

Wait few weeks so i can finish my test.

[UrSobsessed]

Nice!  I'm looking forward to this...

[M3GTttHulk]

I'm killing LSU 4.2's every couple of months  .... so I will also be looking forward to this as I have 2x LSU 4.9s standing by in stock.

[Kamuto]

I'm killing LSU 4.2's every couple of months  .... so I will also be looking forward to this as I have 2x LSU 4.9s standing by in stock.

never ever killed it

[M3GTttHulk]

I'm killing LSU 4.2's every couple of months  .... so I will also be looking forward to this as I have 2x LSU 4.9s standing by in stock.

never ever killed it

I am a bit frustrated that they don't last longer.  They are quite dirty when I take them out, but saying that they are located a long way away from the turbos so it's at least not heat that is killing them.
I have them in the midsection of the exhaust system, and not in the downpipes, so they are basically in the OEM location.

Symptoms are that they start jumping around for a while, but then go down to Lambda 0.7x and jump around between 0.73 and 0.77.

Amy idea why they are going off so fast??

[Kamuto]

they are somewhere under the engine near ground?

[M3GTttHulk]

they are somewhere under the engine near ground?

No, its a BMW M3 with a Supersprint de-cat xpipe.  Sensors have a good angle away from the flow of exhaust gasses, located on top of the exhaust system.  No real reason why they should go off this quickly.. Unless its a settings error in the VEMS killing them

I would even say that they are a bit too far away from the engine.

[Kamuto]

they are somewhere under the engine near ground?

No, its a BMW M3 with a Supersprint de-cat xpipe.  Sensors have a good angle away from the flow of exhaust gasses, located on top of the exhaust system.  No real reason why they should go off this quickly.. Unless its a settings error in the VEMS killing them

I would even say that they are a bit too far away from the engine.

maybe settings or something.

[M3GTttHulk]

they are somewhere under the engine near ground?

No, its a BMW M3 with a Supersprint de-cat xpipe.  Sensors have a good angle away from the flow of exhaust gasses, located on top of the exhaust system.  No real reason why they should go off this quickly.. Unless its a settings error in the VEMS killing them

I would even say that they are a bit too far away from the engine.

maybe settings or something.

they all seem to fail in the same manner.  Starts with fluctuations, then they drop down to LAMBDA 0.7xx levels and bounce around.
No messing about with settings.

Can these be cleaned so they work again?

[mattias]

"They are quite dirty when I take them out"
Fix that problem, and your sensors will last..