K20Z3 ECU Pinout Guide: A Comprehensive Overview**

The K20Z3 ECU is a type of engine control unit designed by Honda to manage the engine’s functions in various models. It is a sophisticated computer system that uses data from various sensors to control fuel injection, ignition timing, and other engine parameters. The K20Z3 ECU is known for its reliability, performance, and flexibility, making it a popular choice among Honda enthusiasts.

Pin Number Signal Name Description A1 CKP Crankshaft position sensor signal A2 CMP Camshaft position sensor signal A3 TPS Throttle position sensor signal A4 MAP Manifold absolute pressure sensor signal A5 IAT Intake air temperature sensor signal … … … Connector B Pinout Pin Number Signal Name Description B1 INJ1 Fuel injector 1 pulse width modulation B2 INJ2 Fuel injector 2 pulse width modulation B3 INJ3 Fuel injector 3 pulse width modulation B4 INJ4 Fuel injector 4 pulse width modulation B5 FPUMP Fuel pump control signal … … … Connector C Pinout Pin Number Signal Name Description C1 IGN1 Ignition coil 1 control signal C2 IGN2 Ignition coil 2 control signal C3 IGN3 Ignition coil 3 control signal C4 IGN4 Ignition coil 4 control signal C5 SPK1 Spark plug 1 firing signal … … … Wiring Diagram and Pin Configuration