Connect E01 , E02 , and E1 directly to the engine block, and ensure the engine block has a heavy gauge earth strap to the battery chassis.
You need at minimum:
The following pinout is based on a common 1KZ-TE ECU (often used in early to mid-90s models). 1: BATT (Battery +) 2: IGN (Ignition Switch) 3: M-REL (Main Relay) 5: E01 (Ground) 6: E02 (Ground) 10: SPV (Spill Valve +) 11: SPV (Spill Valve -) 14: T-TIM (Timing Solenoid) 15: E01 (Ground) 16: E02 (Ground) 23: +B (ECU Power) 25: FPU (Fuel Pressure Up - if applicable ) Plug B (16 Pins) 1: NE+ (Engine Speed Sensor +) 2: NE- (Engine Speed Sensor -) 3: G+ (Cam Position Sensor +) 4: G- (Cam Position Sensor -) 5: THW (Water Temp Sensor) 6: THA (Intake Air Temp Sensor) 7: THO (Fuel Temp Sensor) 9: PIM (Boost Pressure Sensor) 10: VC (5V Sensor Power) 11: E2 (Sensor Ground) Plug C (22 Pins) 1: EGR1 (EGR Valve) 2: EGR2 (EGR Valve) 3: STP (Stop Light Switch) 4: NSW (Neutral Start Switch) 5: A/C (A/C Clutch) 7: W (Check Engine Light) 8: TC (Diagnostic Link) 9: TE1 (Diagnostic Link) 10: TE2 (Diagnostic Link) 11: OD1 (Overdrive Switch) 13: IDL (Throttle Position Sensor Idle) 14: VTA (Throttle Position Sensor) 15: E2 (Sensor Ground) 16: VC (5V Sensor Power) 18: ALT (Alternator L terminal) Plug D (16 Pins) 1: GLW1 (Glow Plug Relay) 2: GLW2 (Glow Plug Indicator) 3: AC1 (A/C Control) 8: TSO (Turbo Solenoid) 10: TIS (Turbo Intake Sensor) 3. Critical 1KZ-TE Sensor and Actuator Functions 1kz ecu pinout
Check pin A18 (EDU) or C11 (FC) . If the fuel cut solenoid loses ground through the ECU, the engine dies. On many swaps, people bypass this by wiring the fuel cut solenoid directly to the ignition switch (12V), but this prevents the ECU from cutting fuel for anti-run-on. It’s safer to let the ECU control it.
For a standard 1KZ-TE swap or troubleshooting, you'll generally look for these primary connections: Connect E01 , E02 , and E1 directly
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| Terminal | Wire Color | Signal | Description | | :--- | :--- | :--- | :--- | | B1 | V-W (Violet-White) | VTA | Throttle Position Sensor | | B2 | G-B (Green-Black) | VC | 5V Sensor Reference | | B3 | R (Red) | THW | Coolant Temp Sensor | | B4 | BR (Brown) | THA | Intake Air Temp Sensor | | B5 | L-B (Blue-Black) | PIM | Manifold Pressure Sensor | | B6 | G-O (Green-Orange) | KNK | Knock Sensor | | B7 | W (White) | NE+ | Crank Position Sensor (+) | | B8 | B (Black) | NE- | Crank Position Sensor (-) | | B9 | Y (Yellow) | G2 | Cam Position Sensor | Critical 1KZ-TE Sensor and Actuator Functions Check pin
Because the 1KZ-TE was produced over many years (roughly 1993–2006) and across various global markets, there are differences in ECU part numbers and pin configurations. This guide covers the general architecture, common pin assignments, and critical differences you need to know.
A traditional throttle cable runs from your pedal to the throttle body. A Throttle Position Sensor (TPS) tells the ECU the cable angle.
Check Engine Light (Malfunction Indicator Lamp / MIL) output to instrument cluster.
| Pin | Signal | |-----|--------| | C1 | AC1 (A/C request) | | C2 | A/C amplifier signal | | C3 | P/S pressure switch | | C4 | Stop lamp switch | | C5 | Brake pedal signal | | C6 | ECT (A/T ECU communication) | | C7 | TC (Diagnosis – check engine light control) | | C8 | W (Warning light – CEL output) | | C9 | MIL (Malfunction indicator lamp) | | C10-C22 | Grounds, power, shield grounds |