MaxxECU STREET Premium ECU Package with Flying-Lead Wiring Harness and Bosch LSU 4.2 Wideband Sensor

MaxxECU STREET Premium ECU Package with Flying-Lead Wiring Harness and Bosch LSU 4.2 Wideband Sensor

Part Number: 1765

The MaxxECU STREET Premium package is a universal standalone engine-management system for cable-throttle applications requiring up to six fully sequential fuel and ignition channels, integrated wideband lambda, flex-fuel capability, variable-cam control, boost control, CAN communications, transmission-control support, and practical supporting I/O.

STREET is the entry point into MaxxECU’s full-featured engine-management range. It provides the core functions needed for many four-, five-, and six-cylinder street and performance engines without the electronic-throttle hardware, peak-and-hold injector drivers, Bluetooth connectivity, knock inputs, EGT inputs, or expanded I/O of the SPORT and RACE ECUs.

This Premium package includes the MaxxECU STREET ECU, 3-meter flying-lead wiring harness, installation accessories, and a genuine Bosch LSU 4.2 wideband oxygen sensor with the matching connector. It is intended for custom wiring and universal engine-management installations rather than direct replacement of an original vehicle ECU.

Key Features

• Controls engines with up to six cylinders using fully sequential fuel injection and ignition
• Supports engines with up to 12 cylinders using non-sequential fuel and wasted-spark ignition strategies
• Six injector outputs for high-impedance injectors
• Six ignition outputs for smart coils, CDI systems, or external ignition amplifiers
• Built-in wideband-lambda controller supporting Bosch LSU 4.2 and LSU 4.9 sensors
• Genuine Bosch LSU 4.2 wideband sensor included
• Built-in 400 kPa absolute MAP sensor, suitable for approximately 3 bar or 43.5 psi of boost
• Dedicated throttle-position, coolant-temperature, and intake-air-temperature inputs
• Two additional temperature inputs
• Two additional 0–5 V analog inputs for pressure sensors and other analog devices
• Two digital inputs for switches or Hall-effect speed signals
• Four configurable general-purpose outputs
• CAN bus for supported transmissions, expansion modules, displays, OEM vehicle communications, and OBD-II data
• Internal data logging at up to 1,000 Hz
• Flex-fuel, variable-cam, boost-control, traction-control, launch-control, rolling-launch, anti-lag, nitrous-control, and engine-protection strategies
• MTune PC software for setup, tuning, diagnostics, and data analysis

Kit Includes

• 1814 — MaxxECU STREET engine-control unit
• 1763 — MaxxECU STREET 3-meter flying-lead wiring harness
• 107 — Genuine Bosch LSU 4.2 wideband oxygen sensor, Bosch 0 258 007 057
• Matching Bosch LSU 4.2 sensor connector
• USB communication cable
• Push-lock-to-barb adapter for the internal MAP-sensor connection
• MAP-sensor push-lock hose kit
• Printed wiring diagram
• Printed quick-start guide

ECU Specifications

Engine Support

• Supports manufacturer-approved 1- through 12-cylinder, two- or four-stroke engine configurations
• Up to six cylinders with fully sequential fuel injection and ignition
• Up to 12 cylinders using wasted-spark ignition
• Individual-cylinder fuel correction
• Injector staging
• Cable-throttle applications
• Variable valve timing, including supported VVT-i and VANOS applications
• Flex-fuel operation

Trigger and Sensor Inputs

• Two crankshaft and camshaft trigger inputs supporting VR or digital Hall-effect signals
• Automatic trigger-level detection
• Dedicated trigger-signal processing
• Dedicated intake-air-temperature input
• Dedicated coolant-temperature input
• Dedicated throttle-position input
• Two additional temperature inputs
• Two additional 0–5 V analog inputs
• Two digital inputs
• Built-in 400 kPa absolute MAP sensor
• Direct Bosch LSU 4.2 or LSU 4.9 wideband-sensor connection

Injector and Ignition Outputs

• Six saturated injector outputs intended for high-impedance injectors
• Six 5 V ignition outputs
• Ignition outputs require smart coils, an external ignition amplifier, or a compatible CDI system
• No internal high-current ignition amplifiers

General-Purpose Outputs

• Three configurable low-side outputs rated at up to 2 A each
• One configurable low-side output rated at up to 5 A
• Supports fuel-pump control, cooling fans, boost-control solenoids, idle-control valves, variable-cam solenoids, nitrous control, warning lights, shift lights, and other assigned functions

Communications and Logging

• Single CAN bus
• USB connection for MTune
• 8 MB internal logging memory
• Internal logging at up to 1,000 Hz
• PC logging at up to 20 Hz through USB
• CAN support for compatible transmission systems, MaxxECU expansion devices, OEM vehicle protocols, OBD-II data output, displays, and data devices

Electrical and Physical Specifications

• Supply-voltage range: 8–22 V
• ARM Cortex-M3 120 MHz main processor
• Fuel and ignition calculations updated 2,000 times per second
• Ignition resolution: 0.1 degree
• Injector-time resolution: 0.001 ms
• Aluminum enclosure
• Dimensions: 140 × 134 × 42 mm, including mounting points and excluding the connector
• Weight: approximately 520 g

Application Notes

• This is a universal flying-lead ECU package, not an application-specific terminated engine harness.
• The included STREET harness uses approximately 3-meter conductors for custom routing and termination.
• This package includes one Bosch LSU 4.2 wideband oxygen sensor and the matching connector.
• The ECU also supports Bosch LSU 4.9 sensors, but the sensor type, connector, wiring, and MTune configuration must match.
• MaxxECU STREET does not include direct electronic-throttle motor outputs and should be treated as a cable-throttle ECU.
• MaxxECU STREET does not include built-in Bluetooth, knock-sensor inputs, or direct Type-K EGT inputs.
• Full sequential operation is limited to engines with six cylinders or fewer.
• Engines with more than six cylinders require a different fuel and ignition strategy or a higher-channel MaxxECU model.
• The injector outputs are intended for high-impedance injectors. Low-impedance injectors require correctly sized external ballast resistors and must present an acceptable load to the ECU.
• The ignition outputs do not directly drive conventional high-current ignition coils.
• Use coils with built-in igniters, a compatible external ignition module, or a CDI system.
• The STREET harness does not include CAN conductors on every harness revision; additional CAN wiring may be required.
• Variable-cam control, transmission control, traction control, and other advanced functions depend on the available inputs, outputs, wiring, sensors, and channel allocation.
• Direct transmission control is available for selected GM 4L60E, 4L65E, 4L80E, 4L85E and Toyota A340E, A341E, and A650E applications.
• CAN-controlled transmission support includes selected BMW DCT, VAG DSG, and Gen 1 ZF 8HP applications.
• Gen 1 ZF 8HP control requires the appropriate MaxxECU transmission harness, compatible shifter hardware, transmission configuration, and CAN setup.

Emissions and Competition-Use Notice

Unless specifically identified as emissions-legal for the applicable vehicle and application, this product is intended for sanctioned competition, off-road, or other non-emissions-controlled use. Installation or use on an emissions-controlled vehicle operated on public roads may violate federal, state, or local law. The purchaser and installer are responsible for confirming and maintaining compliance with all applicable emissions and vehicle-use regulations.