Applications Mitsubishi 4B11
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.
Mitsubishi 4B11T (Evo X)
Evo X 2.0 L turbo. The rusEFI trigger list says 36-2-1 is the example pattern for a 4B11 (also 4G15 and 4G69). That is not the Evo 4–9 4G63 CAS and not a 36-1. Port injection, MIVEC, DBW, coil-on-plug. The SST gearbox is not part of this ECU. Firing order 1-3-4-2.
Recommended: Race Core F7. Four sequential injectors, four logic coils, MIVEC, DBW. The 4G63 note’s CAS decoder is the wrong page for this crank.
Status: draft. Trigger offset has not been confirmed on a running Race Core install.
- Cylinders: 4
- Displacement: 1998 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 |
|---|---|---|---|
| 4B11T Evo X | 2008–2016 | 36-2-1 | Port injection, MIVEC, DBW, COP. AYC and ACD are chassis — leave them TBD. |
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 |
|---|---|---|
| B10 | Digital 1 | Crank Hall |
| 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 |
| 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) |
| A14 | Highside 4 | Boost solenoid if it is high-side switched. A ground-switched valve needs a spare low-side — that pin is TBD |
| 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
TunerStudio mode 36-2-1. Confirm the composite matches before spark. Hall versus VR is decided by the sensor: 3-wire Hall on Digital 1, 2-wire VR on VR 1.
Crank
| Pattern | 36-2-1, the rusEFI example for 4B11. Not MITSU_4G63. |
Cam
| MIVEC / sequential | Digital 2. Intake MIVEC is an output as well as a sensor. |
TunerStudio
| Setting | Value |
|---|---|
| Trigger / wheel type | 36-2-1 |
| Use only rising edge | VR: typically yes on MAX992x. Hall: as logged |
| Invert primary | No — swap VR wires first |
| Firing order | 1-3-4-2 |
Offset: Light on cylinder 1. Evo X damper marks are small.
Injection
Port injectors, four sequential. Evo X is not direct injection. Meter high-Z versus low-Z before you pick a driver strategy. Saturated low-sides need high-Z or a resistor pack.
| Fuel | Return system. Keep manifold reference. |
Ignition
Four logic COP if the coils have igniters. Ign 1–4, dwell 2.2–2.8 ms is the same starting band as the 4G63 COP line, then temperature-check. Firing order in software.
| 4G63 CAS | Do not mix that decoder in because the car is an Evo. |
Idle
DBW. F7 H-bridges and the ETB / APP notes. No stepper. MIVEC oil valve on Highside 1. Boost solenoid on Highside 4 if it is high-side switched; a ground-switched MAC valve needs a low-side pin that is TBD. SST clutch control is not an idle output.
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.