BSM 1 / BSM2 what do these mean ?

[jfkelley]

Data log

I did a Swap into my 1977 High Sierra 4WD with an 2006 LM7 ..can anyone tell me what these numbers mean ? Right now just has basic tune in it to run and move around ..I know the temperature but what the other two mean ..I googled the interweb and not a clear answer ..Hoping for some insight here ..Thanks in advance

 

[Fastereddie]

Data log

I did a Swap into my 1977 High Sierra 4WD with an 2006 LM7 ..can anyone tell me what these numbers mean ? Right now just has basic tune in it to run and move around ..I know the temperature but what the other two mean ..I googled the interweb and not a clear answer ..Hoping for some insight here ..Thanks in advance

Those acronyms mean bank 1 sensor 1
and bank 1 sensor 2.
There should also be a bank 2

That’s referring to the two banks of the engine and O2 sensors 1 and 2. Being upstream and downstream.

 

[jfkelley]

Those acronyms mean bank 1 sensor 1
and bank 1 sensor 2.
There should also be a bank 2

That’s referring to the two banks of the engine and O2 sensors 1 and 2. Being upstream and downstream.

That first # seems high to me 99.99% ?

 

[Fastereddie]

That first # seems high to me 99.99% ?

It’s possible it’s a bogus number. How many o2 sensors do you physically have in the exhaust system?

 

[jfkelley]

It’s possible it’s a bogus number. How many o2 sensors do you physically have in the exhaust system?

Just two sir upstream on both sides

 

[Fastereddie]

Just two sir upstream on both sides

So yeah the b1s2 and b2s2 should be disabled in the tune. You only have b1s1 and b2s1 if that makes sense.

 

[jfkelley]

So yeah the b1s2 and b2s2 should be disabled in the tune. You only have b1s1 and b2s1 if that makes sense.

It just has a basic tune right now to move it around if needed ..So
The tuner will take care of that ..Thanks