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FirestormFRS · 02-25-2013, 09:57 PM

I'm voting for a VVTi failure. Probably not the pulley itself, more likely the oil control valve is stuck open and not letting the VVT return to 0 position. The ECU can't compensate for it so you're running somewhere north of 0 advance in timing.

02-25-2013, 09:57 PM	#46
FirestormFRS Senior Member Join Date: Jul 2012 Drives: 2013 FR-S Location: Anytown Posts: 920 Thanks: 73 Thanked 643 Times in 302 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I'm voting for a VVTi failure. Probably not the pulley itself, more likely the oil control valve is stuck open and not letting the VVT return to 0 position. The ECU can't compensate for it so you're running somewhere north of 0 advance in timing.