Very loud popping sounds after new tune.

[Evilpenguinking]

So I put the bm3 flex fuel kit on my car last night. Everything seems to be working ok except the only issue I have is extremely loud pops when I start the car and left off the gas. Burbles have been turned off completely. I do have an open downpipe. Car is on OTS flex fuel tune map 3. Any ideas what could be going on? These pops are way too loud for me. TIA

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[Evilpenguinking]

Won’t do the loud popping when it’s on the 93 octane stage 2 tune, but as soon as I flash it to the flex fuel tune it starts popping loud again.

 

[XtremeMaC]

Seen 2 other instances now at least on the forum. Try reverting to previous BM3 revision.

 

[GoldenEye]

Ethanol makes mine pop louder

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