WEGO Wideband Exhaust Gas Oxygen. . . . sensor. or WB02
and if you go standlaone fuel/ign controler youll need the following
TPS throttle position sensor
MAP manifold absolute pressure.......sensor
MAF mass air flow.......sensor
ECU engine control unit also known as PCM powertrain control module or EEC Electronic engine control
IAT intake air temp....sensor
WOT wide open throttle
CKP crankshaft or cam position sensor
FRP fuel rail pressure
theres more but i dont want to mess up your head