The AMP EFI Wideband is a high-accuracy, Bosch-powered air/fuel ratio monitoring system designed for precision tuning and rock-solid reliability. Featuring a genuine Bosch controller chip and LSU 4.9 sensor, this package ensures stable AFR readings, and with Bosch's heater control strategy (and proper user installation), we can ensure long, OEM-like sensor lifespan. With both fully isolated analog and CANBus connection options, it’s versatile enough for any installation. Proudly Made in the USA and housed in a rugged, weatherproof metal enclosure for under-hood or in-cabin use.

Key Features

Bosch LSU 4.9 Sensor & IC Chip – Get OE level, industry-leading accuracy and response time, proper sensor warmup strategy, and diagnostic fault code capability.
Onboard CANbus – CANbus message broadcast for elimination of errors with simple selectable addressing, allows for 1 or multiple widebands on the bus, compatible with MS3 and other ECUs and Dataloggers. Keep your valuable analog inputs free!
0-5v Analog Output – Isolated analog output with dedicated sensor ground eliminates ground offsets and errors when using analog connection to your ECU or Datalogger. Great for use with plug and play ECUs to eliminate ground offsets that would normally cause inaccurate readings
Rugged, Weatherproof Metal Enclosure – Suitable for under-hood or in-cabin installation
Analog Output with Dedicated Sensor Ground – Eliminates voltage offset issues and erratic readings
Fast, Stable AFR Data – Perfect for tuning and performance monitoring
Made in the USA – Designed and manufactured in Gainesville, GA, USA!

Specifications

Sensor: Bosch LSU 4.9 Wideband O₂ Sensor
Enclosure: Sealed metal housing, weatherproof design
Analog Output: 0–5V electronically isolated, with dedicated sensor ground
- 0V - 7.35 AFR (Gasoline) / 0.50 Lambda
- 5V - 22.05 AFR (Gasoline) / 1.5 Lambda
CanBus Support:
- 0.50 - 1.5 Lambda Output
- Fully configurable CAN IDs for compatibility with AMP EFI, MegaSquirt, and other systems
Power: 12V nominal (automotive)
Operating Temperature: -40°C to 125°C (-40°F to 257°F)

Compatibility

MegaSquirt ECUs:
- CANBus or Analog - MS3Pro, MSPNP-Pro, MS3X, MS3
- Analog Output - MSPNP2 and MS2
Other ECUs:
- Analog Output
- CanBus - configurable CAN IDs for broad compatibility

Included in the Box

Controller ONLY
- (1) AMP EFI Wideband Controller
Controller w/ Harness
- (1) AMP EFI Wideband Controller
- (1) Sensor Cable
- (1) Power/Communication Harness
Controller w/ Sensor Package
- (1) AMP EFI Wideband Controller
- (1) Sensor Cable
- (1) Power/Communication Harness
- (1) Bosch LSU 4.9 O₂ Sensor

Key Features

Specifications

Compatibility

Included in the Box

Controller ONLY

Controller w/ Harness

Controller w/ Sensor Package

Wideband Controller/Sensors

AMP Wideband Controller

14point7 Spartan 3 Lite V2 Wideband Controller

Innovate DB Series LC-2 Wideband Gauge Kit

Innovate LC-2 Wideband Controller w/ 4.9 Sensor

14point7 Spartan 3 V2 Wideband Controller

O2 Sensor Flange – Toyota Models

Innovate MTX-L Plus Digital Wideband AFR Gauge

Bosch LSU 4.9 Wideband O2 Sensor

Innovate Bosch LSU 4.2 Wideband O2 Sensor

Innovate M18X1.5 Thread Mild Steel Bung and Plug Kit