Which afr should I watch? Command afr or b1s1? What's the difference?

 

I would think, The first one (command) is what the PCM is commanding the other is your actual reading.

 

If you get a dyno tune they are gonna measure off your o2 sensor (B1s1) so that is what I monitor on mine.

 

I don't want to hijack this thread, but I have to ask: How do you like the Interceptor? Did you get the single or dual set-up? And how easy was the install?

I am considering getting the dual set-up, but would like to get some feedback first, before dropping the $$$ into it.

Thanks for any info you can share!

 

I love it. It is simple plug to the obd under the dash and go. You have so many parameters to watch and you can set up a 60 second record to go back and watch instead of trying to watch while you drive, and 1/4 mile app that's fun. Plus it reads afr's with out the extra wide band set up. I would recommend it.

 

It is a great tool if you know how to read it! There are a lot of options to select for display, and the majority of them I have NO CLUE what readouts I "Should" be getting! LOL

I have the single gauge right now and mine is set to B1S1 A/F up top and cycle down below head temp>IAT>Oil Temp>Coolant Temp.