Honestly I wouldn't think anything of it as long as the engine sounds good and no codes are being thrown... To really diagnose this, you would need a laptop with INPA on it or scanner tool to see AFR's when the idle jumps around. Could either be fuel or timing related, but either way as long as the DME is happy, I would continue without worry until there is a reason to worry!
Anthony Bartolini
Loki Motorsports
-2008 A30 E92 M3 6MT-
-1996 328is Drift Car-
Stock Internal M52
M50 Manifold
PTE 6262, ARP's, .140 MLS
OBX T4 Top Mount
Tial 44mm MVR
Tial Q 50mm
Open Dump Love <3
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