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Holley Wideband 02 Controller

Includes LED gauge and all the necessary hardware for a fast, easy installation

Part # 534-201 Be the first to write a review

Holley Wideband 02 Controller

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Want the ability to closely monitor Air/Fuel ratios on your carbureted or EFI vehicle? Wideband O2 sensors do not suffer as great a loss of data accuracy due to voltage and ground fluctuations. This is due in part to their spreading their range of accuracy over 5 volts typically, from 10:1 to 18:1. A wide band oxygen sensor is the ultimate addition to any carbureted or EFI vehicle. This kit will accurately measure any air/fuel ratio between 10:1 and 18:1 allowing the user to read the air/fuel ratio in real time for extremely accurate tuning. The (P/N 534-201) kit is intended for the individual who wants to be able to precisely measure air/fuel ratios to obtain the perfect tune. The (P/N 534-201) comes standard with Bosch LSU4 sensor, but offers the flexibility to be upgraded later for use with an NTK sensor by simply reconnecting a jumper loop and purchasing the NTK sensor (P/N 534-194). The Holley Wide Band O2 gauge included in the kit features a 3-digit numeric display along with a 40 segment bar graph. With the ultra-high intensity light emitting diodes you will be able to see your Air/Fuel ratio even under direct sunlight. The (P/N 534-201) is designed to operate in toughest street or race environments and will withstand heat, dirt, and vibration. The Holley Wide Band O2 gauge will fit in a standard 2-1/16" gauge pod.

Features:

  • Ultimate addition to any Carbureted or EFI Vehicle
  • Accurately measures A/F ratio between 10:1 and 18:1
  • Aides in tuning for maximum power and fuel economy
  • Standard 2-1/16” diameter size for ease of mounting in a standard gauge pod
  • Gauge Features a 3-digit numeric display and 40 segment multicolor bar graph for a quick read
  • Ultra-high intensity light emitting diodes (LED) for easy viewing even in direct sunlight
  • Controller Features small weather-pack sealed unit for convenient mounting
  • Built for race environments to withstand heat, dirt, and vibration
  • Includes Bosch LSU4 Sensor
  • Will accommodate a Bosch or NTK sensor
  • Easy Installation
  • Connects to vehicle light switch to dim the gauge during night time viewing

About Holley

Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start to finish, Holley has the parts to make your dream a reality.

Brand Holley
Product TypeWideband 02 Controller
UPC090127662281
Part Number534-201
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