Pre-ignition Pre-ignition Pre-ignition (or preignition) in a spark-ignition engine is a technically different phenomenon from engine knocking, and describes the event wherein the air/fuel mixture in the cylinder ignites before the spark plug fires. Pre-ignition is initiated by an ignition source other than the spark, such as hot spots in the combustion chamber, a spark plug that runs too hot for the application, or carbonaceous deposits in the combustion chamber heated to incandescence by previous engine combustion events. The phenomenon is also referred to as 'after-run', or 'run-on' or sometimes dieseling, when it causes the engine to carry on running after
Ignition (Remix) The sketch comedy show "Chappelle's Show" had a 2003 skit parodying the R. Kelly sex tape, which consisted of music videos for the fictional songs "Piss On You" and "Piss On You (Remix)". "Piss On You" parodied the 2001 R. Kelly song "Feelin' on Yo Booty", while "Piss On You (Remix)" parodied "Ignition (Remix)". "Don't Matter", by Akon on his 2006 album "Konvicted", borrows the melody of "Ignition (Remix)" in its verse. A portion of "Michael Jackson's Private Home Movies", a 2003 compilation of home movies which Jackson recorded throughout his life and narrated, showed him dancing to "Ignition (Remix)"