Applications Toyota 2GR-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 2GR-FE
3.5 L V6 in Aurion, Camry, RX, Sienna and a lot of Lexus models. Dual VVT-i, coil-on-plug, usually DBW. The FE is port injection. The FSE (IS 350, GS 350 and similar) adds D-4S direct injectors. Race Core saturated low-sides can drive the port injectors only.
Recommended: Race Core F7 only. Six injectors, six logic coils, dual VVT, DBW. Direct injectors on an FSE are not connected. V4 pins and H-bridges are TBD.
Status: draft. Trigger offset has not been confirmed on a running Race Core install.
- Cylinders: 6
- Displacement: 3456 cc
- Firing order: 1-2-3-4-5-6
- Orientation: Firing order 1-2-3-4-5-6, same family as 1GR-FE. Confirm cylinder 1 on the manifold. Coils follow cylinder number.
Variants
| Variant | Years | Trigger | Notes |
|---|---|---|---|
| 2GR-FE | 2005– | 36-2 class crank + cams. Count teeth | Port injection, dual VVT-i, DBW on most. 3456 cc. |
| 2GR-FSE / D-4S | 2006– | Same crank family | Port plus direct. Drive the port rail only. Direct injector pins are TBD and are not low-sides. |
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, if the sensor is 2-wire VR |
| B10 | Digital 1 | Crank, if the sensor is 3-wire Hall |
| B4 / B12 | VR 2+ / VR 2− | Cam VR |
| B1 | Digital 2 | Cam Hall |
| A3 | Lowside 1 | Injector cylinder 1 |
| A15 | Lowside 2 | Injector cylinder 2 |
| A4 | Lowside 3 | Injector cylinder 3 |
| A16 | Lowside 4 | Injector cylinder 4 |
| A5 | Lowside 5 | Injector cylinder 5 |
| A6 | Lowside 6 | Injector cylinder 6 |
| 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 |
| A32 | Ign 5 | Cyl 5 logic coil |
| A31 | Ign 6 | Cyl 6 logic coil |
| A2 | Highside 1 | Cam oil-control valve (PWM) |
| A1 | Highside 2 | Second oil-control or lift solenoid |
| 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 / C35 | Knock 1 / Knock 2 | Knock, one per bank |
| 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
Same rule as the 1GR-FE note. Expect a 36-2 crank and log the cam wheels. Do not select the 2JZ 3-tooth or UZ 3-tooth mode on the name alone. A second cam input pin is TBD.
Crank
| Pattern | Count it. Select 36-2 only when the missing pair is real. VR or Hall per the sensor in the loom. |
Cam
| Dual VVT-i | One sensor per cam you intend to close the loop on. First cam on Digital 2 or VR 2. |
TunerStudio
| Setting | Value |
|---|---|
| Trigger / wheel type | 36-2 after the count. Cam from the log |
| Use only rising edge | VR: typically yes on MAX992x. Hall: as logged |
| Invert primary | No — swap VR wires first |
| Firing order | 1-2-3-4-5-6 |
Offset: Light on the confirmed cylinder 1.
Injection
FE: six high-Z port injectors, sequential. FSE: the port injectors are the only ones these low-sides may drive. Direct injectors need a high-voltage driver this ECU does not have. Leaving them plugged into a low-side is how you destroy a driver and an engine.
| FSE | Port rail only. Direct side stays capped and undriven. |
Ignition
Six logic coils if the coil has an igniter. 2-wire coils are out. Ign 1–6 by cylinder number. Dwell 2.0–2.5 ms until a coil temperature check says otherwise.
| FSE vs FE | Ignition does not change because of direct injection. Fuel does. |
Idle
DBW. Follow the ETB and APP notes for the pedal and throttle connector. H-bridges are the throttle, so there is no stepper. Second pedal track uses the APP note (Analog Volt 9 / Analog Volt 7). Do not parallel it onto TPS 1.
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.