[YaBoiBreadstix]

Alright, so I have this issue that I’ve been noticing for the past 2 weeks or so, the idle on my bmw 320i seems so have a weird-ish noise every second or two overlapping the regular idle noise? Plus when ever I’m coming to stand still my car drops almost to 500 rpm which causes a shake but then quickly jumps back to 700rpm. My car at the moment is on a stage 1 tune from Bm3 with a VRSF intercooler and charge pipe but everything else is stock including plugs. Does anyone know what’s going on?

[floridaorange]

What yr is your 320i. I blew my engine running stage 2 bm3 on my 2013 320i, less than 50k miles. Started with a rough idle. Took it 2 places, 1 was a tuning shop (ECS) and they told me it was normal, the rough idle.