Check the named application. This is a general Ford appendix and may describe vehicles other than Mustang. Model and year tables take precedence over the collection filename. Any emissions standards are historical source material.
SPK-ESA
SPK Electronic Spark Advance
SPK-ESC
SPK Electronic Spark Control (Retard)
SPK-ESS
SPK Electronic Spark Selection
SPK-EST
SPK Electronic Spark Timing
SPK-FDV
SPK Forward Delay Valve
SPK-HPCA
SPK Housing Pressure Cold Advance
SPK-ITCS
SPK Ignition Timing Control System
SPK-ITVS
SPK Ignition Timing Vacuum Switch
SPK-NLVR
SPK Non-Linear Vacuum Regulator
SPK-OSAC
SPK Orifice Spark Advance Control
SPK-PVA
SPK Ported Vacuum Advance
SPK-PVS
SPK Ported Vacuum Switch
SPK-RDO
SPK Retard Delay Orifice
SPK-RDV
Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.