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knock detection

Introduction to Engine Tuning

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Discussion and questions related to the course Introduction to Engine Tuning

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i want to ask about pistons if the block is litle bit bore

than standard is it can knock ?in cold start can hear pingging but after hot pingging is gone..is it in category knock detection?

Hello if you have excessive clearance between the piston and bore you will get noise coming through that sounds like knock but this can be filtered out in most ecus,

thank you sir

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