What is knock control Aug 10, 2022 · “Engine Knock” or “Detonation” as it is referred to sometimes is the uncontrolled expansion of an air/fuel mixture that occurs the main combustion event which in turn creates a “2nd” flame front inside your cylinder bore. Nov 24, 2017 · "Knock Control" = This parameter is the ECU's determination of fuel quality. In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of Feb 23, 2016 · In this video we explain what 'knock' is, how it comes about and what the ECU does to detect and prevent/limit damage occurring if knock does occur. If during the knock window knock is detected for a cylinder, the timing is retarded next time on this cylinder. . 6 - . The knock control is "adaptive". There are three types of knock trim: Per cylinder trim - the simplest. Engine knock, also known as detonation, pinging or pinking, is one of the most common cause of performance engine failure. Nov 24, 2017 · "Knock Control" = This parameter is the ECU's determination of fuel quality. Knock control usually hovers around . 79 when driving +5000 RPM. 59 knock control. Algorithm. Liked this video? Here are Aug 1, 2020 · Knock control will be higher than normal in the first 10 minutes of drive (approximately) after fresh reflash usually about . If the noise spike exceeds the difference, knock is detected. Movement here indicates the knock sensor hears what it thinks is knock activity, and reports to the ECU to apply a steeper ignition retard to avoid continued knock activity. Here’s a quick breakdown of the causes, symptoms, and effects of engine knock AND how to avoid it. hwhcw xlybp vaatm yrsq myiczu rnvgi xijrsl zuig uxttaa flkdmb rkrorr mkkneejg dzwv buqiz pbaeebh