Yeah...
Seeing this is making me believe its probably more related to A/F sensor calibration.

Switch thoes puppies around and see what you get!

 

Well dovla also has the same sensor reading richer than the other... it's just surprising how much leaner he's running in general at WOT, but then again he's modified so he's in a different part of the map.

 

Dovla's sensors may also have the same cal tolerance... And since only two are being used you have a 1/4 chance of getting the same results as eachother (assuming there is a wide calibration tolerance in the sensors).

And I'm also not surprised at his high A/F ratio... Its very common when you stack mods. My Sedan runs as high as 15!

I need to hook up my EU.

 

Actually I think it's a 1/2 chance of getting the same result (that the same bank reads higher for example on both of our cars).

 

To get the same results as Dovla, I say 1 in 4 because the 2 sensors can independantly read either nominal, above nominal or below nominal.
So if they are both nominal, the readings should essentially be the same. (nominal but I excluded nominal as an example)
Bank 1 can be high or bank 2 can be high. (these are two possibilities)
Both sensors can be high or low at the same time which will show biased but balanced results. (These are two other possibilities.)

Oh well. Symantics.

 

Ah I thought you meant just that sensor X reads higher than sensor Y.

 

This is the fun of being engineers!

Now go switch your sensors around so we can get to the bottom of this. Switching the sensors around is easy if you have ramps. I would (and will) do it on both my Z and G, but I still need to get the Inovate Motorsports wideband electronics hooked up.

Although I didn't have the wideband hooked up, I have switch sensors previously on my G and it was pretty easy.

 

Unfortunately I'm kind of lazy and lack the motivation to climb under my car in the public parking garage. But I have installed cams there before so it wouldn't be unheard of. I'll just wait for you guys to do it.

 

Very nice stuff MechEE. I didn't even know this thing existed. I wonder if you have to measure a bunch of diff 02 sensors to get two to read similar.

 

I think it'd be odd for the service manual to list an AFR versus voltage curve but then have calibrations offset these significantly.

 

Could be.

I'll get my electronics hooked up soon. If I get the same results as you and dovla, it would strongly suggest there is a built in A/F delta.

We'll see.

 

What is this mod compared too?

 

MechEE:
Any updates on the discrepancies between the two banks?

 

Unfortunately the WOT AFR offset is still a mystery.

I loved the Zelda games, BTW. Hmm I might just have to fire up the SNES emulator and play some Link to the Past!

 

Went to dealer for WB swap, but this service isn’t doing any out-of-warranty jobs without service manager blessing and he wasn’t there today. Local Midas looked at it and said that this is too much work for them. If this dealer is going to charge me more than $50 it will probably wait until MRC receives their Dynojet sometimes this month.