R52/R53 pinking at full throttle with 15% pulley and premium fuel?
check the plug wires if they are original I'd replace. Also check the coil terminals to make sure non or corroded.
Also consider a dampened crank pulley as the lightweight pulley can mess with the harmonics that the knock sensor and cause pinging
Also consider a dampened crank pulley as the lightweight pulley can mess with the harmonics that the knock sensor and cause pinging
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