I know of a case where the torque converter was destroyed due to worn spark plugs, the manual said 105k miles. vehicle had 90k. After transmission replacement had the exact same transmission knocking noise, spark plug replacement took care of it. I think the indexing by torque only works with factory spark plus.
So what's the conclusion for the year 2024? Preventive maintenance, changing the sparkplugs, requires diagnosis with the oscilloscope? 🙂Give me a break... Owner of the car is a m.o.r.o.n.
The easiest way to locate an offending misfire cylinder is to scope CKP sensor and coil1 trigger signal as reference. Then apply crank math channel to CKP signal and using coil signal+firing order you find out the offending cylinder.
Great work
I know of a case where the torque converter was destroyed due to worn spark plugs, the manual said 105k miles. vehicle had 90k.
After transmission replacement had the exact same transmission knocking noise, spark plug replacement took care of it.
I think the indexing by torque only works with factory spark plus.
So what's the conclusion for the year 2024? Preventive maintenance, changing the sparkplugs, requires diagnosis with the oscilloscope? 🙂Give me a break...
Owner of the car is a m.o.r.o.n.
It would have been interesting to see if Mode 6 showed any misfire data. Thank you for posting!
The easiest way to locate an offending misfire cylinder is to scope CKP sensor and coil1 trigger signal as reference. Then apply crank math channel to CKP signal and using coil signal+firing order you find out the offending cylinder.