Suzuki K6a Engine Ecu Pinout High Quality

The Suzuki K6A engine is a legend in the kei-car world. Found under the hood of the Suzuki Cappuccino, Alto Works, and the cult-classic Autozam AZ-1, this 660cc powerhouse is the heart of Japan's most exciting micro-cars.

Whether you are swapping this engine into a classic Mini, a beach buggy, or repairing a vintage JDM import, accessing a high-quality ECU pinout is often the most frustrating step. Low-resolution scans from 1990s service manuals circulate the internet, often missing critical context.

This feature provides a clear, high-quality reference for the Suzuki K6A ECU pinout, focusing on the most common MPFI (Multi-Point Fuel Injection) configuration found in the Cappuccino and AZ-1. suzuki k6a engine ecu pinout high quality

| Connector | Pin Count | Color Code (Typical) | |-----------|-----------|----------------------| | A | 32 | Gray | | B | 32 | Black | | C (OBD) | 22 | Blue (some models) |

Note: Not all pins are populated on all vehicle models (e.g., Wagon R, Alto, Jimny, Carry). The Suzuki K6A engine is a legend in the kei-car world

| Pin | Wire Color | Function | Notes | |-----|------------|----------|-------| | B-1 | G/B (Green/Black) | TPS signal (0.3–4.7V) | 5V sensor reference | | B-2 | Lg/Y (Light Green/Yellow) | MAP sensor signal | 0–5V (vacuum to boost) | | B-3 | Y/B (Yellow/Black) | Intake air temp (IAT) | Thermistor to sensor ground | | B-4 | B/Y (Black/Yellow) | Sensor ground | Same as A-2 | | B-5 | Lg/B (Light Green/Black) | Engine coolant temp (ECT) | Thermistor | | B-6 | R/Y (Red/Yellow) | +5V sensor reference | Output from ECU (do not short to ground) | | B-7 | G (Green) | Crank position sensor (CKP) – signal + | 2-wire variable reluctance | | B-8 | G/W (Green/White) | CKP – signal - | – | | B-9 | W (White) | Cam position sensor (CMP) – signal | Single pulse per cam revolution | | B-10 | B (Black) | CMP ground | – | | B-11 | R/B (Red/Black) | Knock sensor signal (if equipped) | Shielded wire, only on turbo models | | B-12 | B (Black) | Knock sensor shield/ground | – | | B-13 | – | (NC) | – | | B-14 | P/W (Purple/White) | O2 sensor signal (narrowband) | 0–1V, ZrO2 type | | B-15 | B (Black) | O2 sensor ground | Separate from sensor ground | | B-16 | Y/R (Yellow/Red) | VSS (vehicle speed sensor) | Reed switch or Hall effect, 4 pulses/rev | | B-17 | – | (NC or PSPS – power steering pressure) | – | | B-18 | R (Red) | Brake switch signal (to ECU) | For idle-up and decel fuel cut |

Avoid generic PDFs. Instead:

Red flag: Any pinout that lists less than 50 pins or uses generic colors like “Red wire” without a stripe is unsafe.