Applications Toyota 2ZZ-GE
Draft. Trigger offset has not been confirmed on a running Race Core install. Pins marked TBD are unknown — do not guess them. A wrong decoder or firing order can destroy the engine.
Toyota 2ZZ-GE
1.8 L Celica, Corolla and Lotus Elise/Exige engine. Same Toyota training trigger as the 1ZZ-FE: 36-2 crank pick-up and a 3-tooth cam. VVTL-i adds a high-lift oil-control valve on top of intake VVT-i. Coil-on-plug. High-impedance port injectors. Yamaha-headed, 11.5:1 on the Celica sheet.
Recommended: F7, V4 or Micro Core for four sequential injectors and four logic coils. Lift and VVT are two different outputs. DBW is uncommon on this engine; the Elise throttle is cable.
Status: draft. Trigger offset has not been confirmed on a running Race Core install.
- Cylinders: 4
- Displacement: 1796 cc
- Firing order: 1-3-4-2
- Orientation: Cylinder 1 at the timing-chain end. Firing order 1-3-4-2.
Variants
| Variant | Years | Trigger | Notes |
|---|---|---|---|
| 2ZZ-GE Celica / Corolla | 1999–2005 | 36-2 + 3-tooth cam | VVTL-i, COP, cable throttle, 1796 cc, firing 1-3-4-2. |
| 2ZZ-GE Lotus | 2004–2006 class | Same 36-2 family | Elise / Exige. Same decoder problem as the Celica: confirm the 3-tooth cam before naming the mode. |
Recommended pin assignment (Race Core F7)
Pins below are the library default Race Core F7 map — the same AMPSEAL landings as the verified 1UZ-FE, 2JZ-GTE and LS1 notes. Core EFI V4 and Micro Core cavity numbers are TBD. If a pin is not in this table, it is TBD. Do not guess a spare.
| Pin | TunerStudio | Function |
|---|---|---|
| B5 / B13 | VR 1+ / VR 1− | Crank VR |
| B4 / B12 | VR 2+ / VR 2− | Cam VR |
| A3 | Lowside 1 | Injector cylinder 1 |
| A15 | Lowside 2 | Injector cylinder 2 |
| A4 | Lowside 3 | Injector cylinder 3 |
| A16 | Lowside 4 | Injector cylinder 4 |
| A35 | Ign 1 | Cyl 1 logic coil |
| A34 | Ign 2 | Cyl 2 logic coil |
| A22 | Ign 3 | Cyl 3 logic coil |
| A33 | Ign 4 | Cyl 4 logic coil |
| A2 | Highside 1 | Cam oil-control valve (PWM) |
| A1 | Highside 2 | Second oil-control or lift solenoid |
| C20 | Analog Temp 3 | CLT |
| C30 | Analog Temp 2 | IAT |
| C13 | Analog Volt 1 | MAP 0–5 V |
| C24 | Analog Volt 2 | TPS 1 |
| C34 | Knock 1 | Knock |
| A20 | Lowside 10 | Fuel-pump relay coil |
| A21 | Lowside 12 | Main-relay coil |
| A12 | Lowside 15 | Radiator-fan relay coil |
| B17 / B16 | CAN 1 H / L | Dash / wideband |
| B18 | Battery Sense | Ignition-switched 12 V (5 A fuse) |
| B23 | +12 V MR | Main-relay 12 V into ECU |
| A17 A18 A24 B14 B19 B20 | Power GND | Engine block → battery − |
| C9 / C21 / C32 | 5 V Sens 1 | MAP, TPS, pedal 1 |
| C1–C8, C29, C31 | Sensor GND | 0–5 V and thermistor returns |
Trigger
Use the 1ZZ-FE trigger section. Crank is 36-2 VR. Cam is 3-tooth. Do not select the 2JZ VVT 3-tooth decoder or the UZ 3-tooth decoder until the log matches. Lift is not a trigger.
Crank
| Pattern | 36-2 VR on B5 / B13. |
Cam
| Pattern | 3-tooth intake cam, B4 / B12. |
TunerStudio
| Setting | Value |
|---|---|
| Trigger / wheel type | 36-2. Cam mode after the composite matches |
| Use only rising edge | Yes on MAX992x VR (typical) |
| Invert primary | No — swap VR wires first |
| Firing order | 1-3-4-2 |
Offset: Light on cylinder 1. High-lift engagement does not change the crank decoder.
Injection
High-Z sequential four. These engines are port injected. Do not size required fuel from a forum flow number — measure or use an injector data sheet.
| Fuel | Return system on the Celica. Keep a reference to the regulator if you add boost. |
Ignition
Four logic coils, Ign 1–4 in cylinder-number order. Dwell 2.0–2.5 ms. A hot coil at idle is excess dwell or a bad power ground, not a trigger offset.
| Firing order | Set 1-3-4-2 in software. Do not reorder the pin table to the firing order. |
Idle
Cable throttle and an idle air valve. Identify 2-wire versus stepper before you claim the H-bridges. The idle output pin is TBD if it is not the F7 stepper pair (B7/B6 + B15/B8), and that pair cannot also run DBW.
VVTL-i lift solenoid is Highside 2 (A1), on/off, not the VVT PWM on Highside 1 (A2). Confirm the two connectors with a meter: the VVT valve is duty-cycled, the lift valve is switched.
First start
- Load the matching variant configuration in TunerStudio before the harness is live — injectors and coils stay disconnected until the decoder is confirmed.
- Fuel pump fuse out. Coils unplugged or spark outputs disabled. Crank. Open Diagnostics → composite / high-speed logger.
- Confirm crank teeth are even, the missing-tooth (or named pattern) is a single clean gap, and cam is one pulse per two crank revolutions for sequential four-stroke.
- RPM during cranking should sit in the 150–350 rpm band. 0 rpm or 12,000 rpm means the decoder is lost — polarity or wheel type, not offset.
- Lock timing to a fixed 10° (idle control off). Timing light on cylinder 1. Change trigger offset until the damper agrees with 10°.
- Recheck at ~3,000 rpm. If timing walks with RPM, it is VR polarity, a delayed Hall, or the wrong decoder — not offset.
- Enable spark. Confirm a healthy burn (timing light or plug colour) with fuel still disabled.
- Enable fuel. Prime, then crank. Catch the first idle on a rich-safe VE, then lean toward stoich at idle.
- Only then enable closed-loop idle, VVT, boost and traction. A base map is a starting point, not a dyno tune.
A base map is a starting point, not a dyno tune.