How cheap were those knock sensors? I broke the OEM sensor in my dad's s2000 so we decided to see if an aftermarket $7 one would do. It didn't, knock sensor code popped up. More than $100 later, it is fixed now.
What i'm thinking this might be is carbon build up on the pistons effectively raising the compression ratio above OE spec to the point where the ignition maps are too advanced. How about running a compression test?
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Last edited by Daschicken; 09-21-2017 at 03:15 PM..
Reason: O baby
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