SES light on with Fi cats and non foulers
either keep driving and see if the SES goes away or try resetting the ecu, if it still comes back then i would contact Tony @ FI, im pretty sure he can better help you out considering he stated that the non-foulers work near perfect on the VQ's.
Also get the code checked out maybe its for something completely different,
Also get the code checked out maybe its for something completely different,
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