I'm curious what the target WOT AFR is on the new v400 maps. Granted I'm running an ETS intake not the stock intake, but on the older maps the WOT AFR was mid-high 10's. Now it's low-mid 12's, which is too lean in my opinion.

What are other people seeing? I saw at least one other post on the on the official Cobb forums seeing the same thing. I have a feeling most people running the OTS maps don't have widebands so they don't know, but it's worth a shot to ask.

I also tried the SF intake map for fun. It's slightly richer, but still solidly above 12.

 

Can you try stock intake and let us know the AFR ?
I have no wide band to check on mine, are you running stage 1 or 2 map?

 

Stage 2 91 octane, I have a test pipe and catback. I might try putting the stock intake back on to test if I have time.

 

I have ETS intake also, im running the stage 2 ver 400, and I was high 11's, low 12's when it was spooling.

 

Mine runs Mid 11's I saw 12's at first but I fixed the issue check ur LTFT make sure it's "0" at wot, I had to change the lt trim control settings to 350/343.75 the OTS map has it at 300/318 which was too low for my car so my trims were affecting my AFR at wot I also changed the open loop switch point lower if u leave it stock ltft will slightly affect afr at wot. I'm not sure if others had any of these issues but this is what fixed mine.