Might as well try it. Keep it updated. It sucks that you still have this going on.. just to be sure, you might as well clean out and tighten up both VANOS solenoid connections, and your MAF connection. Use some CRC MAF cleaner for all 3 and tighten them up by bending the actual 'inside' metal tab inward, so they make better contact. I accidentally bent the outsides of them in the first time and loosened them.. there are thin tabs inside the metal piece..
anyway, do that, it's an easy job. might as well?
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Koni STR.T, poly RTABs, headers, SSK.
Three Pedals, ZSP.