Applications Toyota 1ZZ-FE
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 1ZZ-FE
1.8 L Corolla, Celica, Matrix and MR2 Spyder engine. Toyota’s 1ZZ/2ZZ training sheet lists a pick-up-coil crank rotor of 36-2 and a 3-tooth cam. VVT-i on the intake cam. Early cars are wasted-spark; later cars are coil-on-plug. High-impedance port injectors.
Recommended: F7, V4 or Micro Core for fuel and spark. DBW, where fitted, needs the F7 H-bridges — V4 and Micro Core DBW are TBD. Four sequential injectors and four logic coils once the cam sync is real.
Status: draft. Trigger offset has not been confirmed on a running Race Core install.
- Cylinders: 4
- Displacement: 1794 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 |
|---|---|---|---|
| 1ZZ-FE early | 1998–2002 | 36-2 crank VR + 3-tooth cam | Wasted spark on many, cable throttle, intake VVT-i. |
| 1ZZ-FE later | 2003–2007 | 36-2 + 3-tooth cam | Coil-on-plug on many. Some ETCS-i. Same crank family. |
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) |
| B7/B6 + B15/B8 | ETB 1 ± / ETB 2 ± | DBW motor. Not a stepper as well. Pedal and TPS tracks: follow the APP and ETB notes |
| 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
Crank pattern is the Toyota 36-2, not the early JZ 12-tooth and not a 36-1. The cam is a 3-tooth wheel. This library’s 2JZ note uses VVT Toyota 3-tooth, and the 1UZ note uses Toyota 3-tooth UZ. Those are different decoders. Do not pick either for a 1ZZ until the composite log matches that shape.
Crank
| Pattern | 36-2 VR. B5 / B13. |
| Source | Toyota 1ZZ-FE / 2ZZ-GE training: crankshaft position sensor, pick-up coil, rotor teeth 36-2. |
Cam
| Pattern | 3-tooth VR on the intake cam. B4 / B12. |
| Decoder | Log it. Use a named Toyota 3-tooth mode only when the gaps match. Otherwise treat cam as sync after the pattern is identified. |
TunerStudio
| Setting | Value |
|---|---|
| Trigger / wheel type | 36-2 crank. Cam mode only after the log matches a named Toyota 3-tooth |
| Use only rising edge | Yes on MAX992x VR (typical) |
| Invert primary | No — swap VR+ / VR− first |
| Firing order | 1-3-4-2 |
Offset: Light on cylinder 1. Do not copy the 2JZ 12-tooth 65° figure onto a 36-2.
Injection
High-Z port injectors, sequential four once the cam is synced. Wasted-spark cars can still be batch fuel, but the low-sides are there for sequential.
| Impedance | High-Z. Meter before you delete a resistor that is not there. |
Ignition
Wasted spark: two logic outputs into igniters, or a wasted-spark coil with built-in igniters. COP: Ign 1–4 in cylinder-number order. Dwell 2.0–2.5 ms on a logic coil.
| Dumb coils | Not compatible with a logic output. |
Idle
Cable cars use a rotary solenoid or a 2-wire idle valve — identify the connector. The output pin beyond the three relay low-sides is TBD. ETCS-i uses the F7 H-bridges and then you do not also run a stepper. Pedal wiring is the APP note, not a guessed cavity.
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.