MaxxECU GEN2 TRACK is a 102-pin wire-in MaxxECU ECU on 3 connectors: MX1 (34 pins), MX2 (34 pins) and MX3 (34 pins).
It has 8 injector outputs and 8 ignition outputs. The injector drivers are peak-and-hold, so low-impedance injectors run without a resistor pack. The ignition outputs are logic-level. Smart coils plug straight in; dumb coils need an igniter in between.
There are 6 dedicated trigger inputs, each happy with a VR or a Hall sensor. Two knock inputs cover both banks of a V engine. It has 2 onboard wideband controllers, so a sensor wires straight in. The MAP sensor is built in.
It has H-bridge outputs labelled for an electronic throttle, so drive-by-wire runs from the ECU itself. Two CAN buses handle dashes, PDMs and expansion. Eight outputs can switch 12V as well as ground.
Spec sheet
| Connectors | MX1 (34), MX2 (34), MX3 (34)102 pins in this profile |
|---|---|
| Injector outputs | 8peak-and-hold (low-impedance capable) |
| Ignition outputs | 8logic-level: smart coils, or an igniter for dumb coils |
| Dedicated trigger inputs | 6VR or Hall |
| Knock inputs | 2 |
| Onboard wideband controllers | 2 |
| Onboard MAP sensor | Yes |
| CAN buses | 2 |
| Drive-by-wire | Yes |
| High-side outputs | 8 |
| Half-bridge outputs | 4H-bridge pairs for a throttle motor or stepper |
| 5V sensor supply | 3 pins |
Worth knowing
- No dedicated digital-input category: analog inputs take switches, pulse inputs take frequency signals.
- 102 positions, 94 used.
Which builds it suits
Of the 58 swap presets in the planner, 28 fit as they are and 29 fit with add-ons; 1 does not fit at all. The add-on it asks for most often is an external igniter. Where it falls short, it is usually not enough knock inputs. The planner fills anything a preset leaves open with its ordinary defaults, so your own build may land differently.
It runs the GM LS L92 (Gen4 6.2 alum), Nissan SR20DET (S15), Subaru EJ/FA EJ20 turbo dual-AVCS (EJ207 GRB 2008+) and Mazda Rotary 20B (Eunos Cosmo 3-rotor) presets with nothing added. The Toyota 2JZ-GTE non-VVTi needs an external igniter. The Ford Barra 4.0 Turbo (240T/245T/270T/310T/325T) needs an external igniter. It can't run the BMW S54 (3.2 NA I6, E46 M3): not enough knock inputs.
Fits as it is 28
- GM LS1 (Gen3 5.7 alum)
- GM LS6 (Gen3 5.7 alum)
- GM LS LQ4/LQ9 (Gen3 6.0 iron)
- GM LS2 (Gen4 6.0 alum)
- GM LS3 (Gen4 6.2 alum, car)
- GM LS L76 (Gen4 6.0 alum)
- GM LS L92 (Gen4 6.2 alum)
- GM LS LY6/L96 (Gen4 6.0 iron)
- GM LSA (Gen4 6.2 alum, S/C)
- Nissan RB25DET non-Neo S2 (R33, smart coils)
- Nissan RB25DET Neo (R34)
- Nissan RB26DETT (R34, smart coils)
- Nissan VR38DETT (R35 GT-R)
- Nissan SR20DET (S15)
- Nissan VQ35DE (base, 2003-04)
- Nissan VQ35DE Rev-Up (2005-06)
- Nissan VQ35HR (High-Rev, 2007+)
- Honda K20 (i-VTEC 2.0 NA)
- Honda K24 (i-VTEC 2.4 NA)
- Subaru EJ/FA EJ20 turbo single-AVCS (EJ207 v7-9)
- Subaru EJ/FA EJ20 turbo dual-AVCS (EJ207 GRB 2008+)
- Subaru EJ/FA EJ25 turbo single-AVCS (EJ257 2004-07)
- Subaru EJ/FA EJ25 turbo dual-AVCS (EJ257 2008+)
- Subaru EJ/FA FA20D (BRZ/86 NA)
- Mazda Rotary 13B-REW (FD RX-7)
- Mazda Rotary 13B-MSP Renesis (RX-8 manual, 6-injector)
- Mazda Rotary 13B-MSP Renesis (RX-8 auto, 4-injector)
- Mazda Rotary 20B (Eunos Cosmo 3-rotor)
Fits with add-ons 29
- Toyota 1JZ-GE distributor (NA, early) with an external igniter
- Toyota 1JZ-GE VVT-i (coil pack) with an external igniter
- Toyota 1JZ-GTE non-VVTi with an external igniter
- Toyota 1JZ-GTE VVTi with an external igniter
- Toyota 2JZ-GE distributor (NA, early) with an external igniter
- Toyota 2JZ-GE VVT-i (coil pack) with an external igniter
- Toyota 2JZ-GTE non-VVTi with an external igniter
- Toyota 2JZ-GTE VVTi with an external igniter
- GM LT1 (Gen5 6.2 alum) with a direct-injection driver module
- GM LT4 (Gen5 6.2 alum, S/C) with a direct-injection driver module
- Ford Coyote 5.0 Gen1 (2011-14) with an external igniter
- Ford Coyote 5.0 Gen2 (2015-17) with an external igniter
- Ford Coyote 5.0 Gen3 (2018-23) with an external igniter
- Ford Modular 4.6 2V (SOHC) with an external igniter
- Ford Modular 4.6 4V Cobra (NA, cable) with an external igniter
- Ford Modular 4.6 4V Terminator (S/C, cable) with an external igniter
- Ford Modular 5.4 4V Ford GT (S/C, cable) with an external igniter
- Ford Modular 5.4 4V GT500 (S/C, DBW) with an external igniter
- Ford Coyote Voodoo 5.2 (GT350, flat-plane) with an external igniter
- Ford Coyote Predator 5.2 (GT500, cross-plane, S/C) with an external igniter
- Ford Barra 4.0 NA (182/190/195) with an external igniter
- Ford Barra 4.0 Turbo (240T/245T/270T/310T/325T) with an external igniter
- Nissan RB20DET with an external igniter
- Nissan RB25DET non-Neo S1 (R33, dumb coils) with an external igniter
- Nissan RB26DETT (R32/R33, dumb coils) with an external igniter
- Nissan SR20DET (S13) with an external igniter
- Nissan SR20DET (S14) with an external igniter
- Subaru EJ/FA FA20DIT (WRX turbo 2015+) with a direct-injection driver module
- BMW N54 (3.0 twin-turbo I6) with a direct-injection driver module, an external igniter
Does not fit 1
- BMW S54 (3.2 NA I6, E46 M3) not enough knock inputs
Plan a build around the MaxxECU GEN2 TRACK
Pin table
By connector: MX1 carries 4 injector outputs, 4 ignition outputs and 4 trigger inputs; MX2 carries 2 injector outputs, 2 ignition outputs and 2 knock inputs; MX3 carries 2 injector outputs, 2 ignition outputs and 2 trigger inputs.
Show all 102 pins
| Pin | Function |
|---|---|
| MX1 1 | IGNITION 1 |
| MX1 2 | IGNITION 2 |
| MX1 3 | IGNITION 3 |
| MX1 4 | IGNITION 4 |
| MX1 5 | GP OUT 1 (GND) |
| MX1 6 | GP OUT 2 (GND) |
| MX1 7 | GP OUT 3 (GND) |
| MX1 8 | GP OUT 4 (GND) |
| MX1 9 | ENGINE GND |
| MX1 10 | DIGITAL/VR 1 (PULSE) SIGNAL + |
| MX1 11 | DIGITAL/VR 1 (PULSE) SIGNAL - |
| MX1 12 | DIGITAL/VR 1 (PULSE) POWER SUPPLY |
| MX1 13 | DIGITAL/VR 1 (PULSE) SHIELD |
| MX1 14 | SENSOR GND |
| MX1 15 | CAN L |
| MX1 16 | CAN H |
| MX1 17 | GP OUT 5 / TACHO (GND) |
| MX1 18 | DIGITAL/VR 2 (PULSE) SIGNAL + |
| MX1 19 | DIGITAL/VR 2 (PULSE) SIGNAL - |
| MX1 20 | DIGITAL/VR 2 (PULSE) POWER SUPPLY |
| MX1 21 | DIGITAL/VR 2 (PULSE) SHIELD |
| MX1 22 | 5V POWER SUPPLY |
| MX1 23 | DIGITAL/VR 3 (PULSE) SIGNAL + |
| MX1 24 | DIGITAL/VR 4 (PULSE) SIGNAL + |
| MX1 25 | 12V ECU SUPPLY 1 |
| MX1 26 | AIN 1 |
| MX1 27 | AIN 2 |
| MX1 28 | AIN 3 |
| MX1 29 | AIN 4 |
| MX1 30 | AIN 5 |
| MX1 31 | INJECTOR 1 |
| MX1 32 | INJECTOR 2 |
| MX1 33 | INJECTOR 3 |
| MX1 34 | INJECTOR 4 |
| MX2 1 | IGNITION 5 |
| MX2 2 | IGNITION 6 |
| MX2 3 | GP OUT 6 (GND) |
| MX2 4 | AIN 6 |
| MX2 5 | AIN 7 |
| MX2 6 | AIN 8 |
| MX2 7 | GP OUT 13 (H-BRIDGE 1) |
| MX2 8 | GP OUT 14 (H-BRIDGE 1) |
| MX2 9 | ENGINE GND |
| MX2 10 | LAMBDA 1 VS |
| MX2 11 | LAMBDA 1 COM/VREF |
| MX2 12 | LAMBDA 1 HEATER- / GP OUT 7 (GND) |
| MX2 13 | AIN 9 |
| MX2 14 | AIN 10 |
| MX2 15 | AIN 11 |
| MX2 16 | AIN 12 |
| MX2 17 | AIN 13 |
| MX2 18 | LAMBDA 1 RCAL |
| MX2 19 | LAMBDA 1 IP |
| MX2 20 | LAMBDA 1 HEATER+ (12V) |
| MX2 21 | LAMBDA 1 SHIELD |
| MX2 22 | AIN 14 |
| MX2 23 | AIN 15 |
| MX2 24 | 12V ECU SUPPLY 3 |
| MX2 25 | 12V ECU SUPPLY 2 |
| MX2 26 | KNOCK 1 SHIELD |
| MX2 27 | KNOCK 1- |
| MX2 28 | KNOCK 1+ |
| MX2 29 | KNOCK 2 SHIELD |
| MX2 30 | KNOCK 2- |
| MX2 31 | KNOCK 2+ |
| MX2 32 | AIN 16 |
| MX2 33 | INJECTOR 5 |
| MX2 34 | INJECTOR 6 |
| MX3 1 | GP OUT 15 (H-BRIDGE 2) |
| MX3 2 | GP OUT 16 (H-BRIDGE 2) |
| MX3 3 | IGNITION 7 |
| MX3 4 | IGNITION 8 |
| MX3 5 | NOT USED |
| MX3 6 | NOT USED |
| MX3 7 | NOT USED |
| MX3 8 | NOT USED |
| MX3 9 | ENGINE GND |
| MX3 10 | LAMBDA SENSOR 2 VS |
| MX3 11 | LAMBDA SENSOR 2 VREF |
| MX3 12 | GP OUT 8 (GND) / LAMBDA SENSOR 2 H- |
| MX3 13 | LAMBDA SENSOR 2 SHIELD |
| MX3 14 | GP OUT 9 (12V) |
| MX3 15 | GP OUT 10 (12V) |
| MX3 16 | GP OUT 11 (12V) |
| MX3 17 | GP OUT 12 (12V) |
| MX3 18 | LAMBDA SENSOR 2 RCAL |
| MX3 19 | LAMBDA SENSOR 2 IP |
| MX3 20 | 12V LAMBDA SENSOR 2 (H+) |
| MX3 21 | PULSE 5+ |
| MX3 22 | PULSE 5- |
| MX3 23 | PULSE 5 SHIELD |
| MX3 24 | CAN2 L |
| MX3 25 | CAN2 H |
| MX3 26 | PULSE 6+ |
| MX3 27 | PULSE 6- |
| MX3 28 | PULSE 6 SHIELD |
| MX3 29 | INJECTOR 7 |
| MX3 30 | INJECTOR 8 |
| MX3 31 | NOT USED |
| MX3 32 | NOT USED |
| MX3 33 | NOT USED |
| MX3 34 | NOT USED |
Other MaxxECU ECUs
The closest MaxxECU unit is the MaxxECU GEN2 RACE. Against it, this one has 8 injector outputs (the GEN2 RACE has 16), 8 ignition outputs (the GEN2 RACE has 12) and 102 pins (the GEN2 RACE has 136).
Source: MaxxECU documentation for the GEN2 TRACK
Always verify against the manufacturer's manual and your tuner before wiring.