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 (The Offspring album) 1994, The Offspring landed the opening slot for Pennywise on their "Unknown Road" tour. The "Ignition" tour ended on April 1, 1994 at the Shrine Auditorium in Los Angeles, just one week before the release of "Smash". Ignition (The Offspring album) Ignition (stylized as ignition) is the second studio album by American punk rock band The Offspring. It was the second Offspring album produced by Thom Wilson, and was released on October 16, 1992, on Epitaph Records, marking their first release on that label. Released during the alternative rock and grunge-era, the album brought the band small success in Southern