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I had another 2020 XP4 that won't connect and a 2021 Pro XP4 that doesn't connect.

I'm having the same problem with my 2020 Pro Xp4. It keeps saying failed.

As stated im having issues with the commanded lambda jumping from .812 to 1.0 right at 4000 rpm. Im trying to figure out why it would do this? I have adjusted the wot lambda and Power enrichment...

Thanks, should have a chance to look at those today

I have a 08 gt500 track car that has an overly sensitive throttle. It seems like at 20% foot throttle the TB is opening 50%. Does anyone know the best place to address this problem. I have tried to...