Based on technical documentation for common 660cc K6A configurations, here are the vital circuits you will likely need for wiring or troubleshooting: Key Functions Typical Terminal/Connector Injectors #1, #2, #3 Connector C37: Pins 1, 2, and others Power Supply Main Battery +, Ignition Switch Connector E23: Pins 12, 25, 26, 30 Grounds ECM Ground, Sensor Ground Connector C37: Pin 31; Connector E23: Pins 13, 14, 21 Sensors Camshaft (CMP), Crankshaft (CKP) Connector C37: Pins 2, 8; Connector E23: Pins 3, 9 Engine Load MAP, TPS, Coolant Temp (ECT) Connector C37: Pins 3, 4, 5, 11 (IAT) Relays/Outputs Fuel Pump Relay, Main Relay Connector E23: Pin 1 (Main), Pin 19 (Fuel Pump) Vital Setup & Troubleshooting Tips
: Always verify the ECU number (e.g., Denso 33920) before wiring, as variants exist for AT, MT, and Turbo models. suzuki k6a engine ecu pinout better
: Dedicated pins trigger each of the three fuel injectors in a one-to-one correspondence Ignition Control Based on technical documentation for common 660cc K6A
If you are performing an engine swap (e.g., putting a K6A into a Samuai or Geo Metro) and want the engine to simply start, these are the only pins you strictly need to focus on initially: Core ECU Pinout Functions
The K6A ECU typically uses a multi-connector system, often a 60-pin (C37) and a 34-pin (E23) arrangement, to manage critical engine functions Fuel Injection & Ignition
Understanding the is essential for engine swaps, wiring repairs, or installing aftermarket management systems like Speeduino . The K6A is a 660cc, three-cylinder engine commonly found in models like the Suzuki Jimny, Alto, and Wagon R. Core ECU Pinout Functions