Trailmaster 300 EFI XRS4E MAGNUM MAGNUM ATV BOSCH O2 Oxygen Sensor Universal Wiring (2024)

In modern UTVs Exhaust Oxygen Sensors are attached to the engine's exhaust to determine whether the mix’s Air / Fuel Ratio is normal, rich or lean. This information is delivered to your Trailmaster 300 EFI XRS4E's engine management, which adjusts the mixture to deliver the engine the best possible economy and lowest possible exhaust emissions. Install this genuine Bosch O2 Sensor to revamp your Trailmaster 300 EFI XRS4E’s HP Output and fuel mileage.

This Bosch Lambda Sensor is available to 1 up to 4-wire narrowband Oxygen Sensors. Please download installation instructions for universal wiring.

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Did someone make you aware? The Lambda Sensor was invented by Robert Bosch LLC during the late 1960s while tests were executed under the control of Dr. Günter Bauman. This is where Bosch Exhaust Gas Oxygen Sensor’s dazzling reputation grew out of.

Do you know? The first O2 Sensor was first fitted in Volvo’s yet in 1976 and was led into the market Lambda Sond. Since then Air Fuel Sensors gradually has come out indispensable for all gasoline engines and nowadays for diesel power plants as well. On All Terrain Vehicles the AF Sensor or with other words the emissions control has turned to be indispensable in recent time.

Learn more particulars about your ECU Tuner.

Should you be interested in more Performance Navigate to this page to see more info about the Tuning Piggybacks available for your Trailmaster 300 EFI XRS4E.

Do Not Be Reluctant to make a comparison about our Exhaust O2 Sensor’s price and specs over other tuner companies’ information to make sure this Trailmaster 300 EFI XRS4E Exhaust Air Fuel Sensor is the downright the best mod for your hard earned money.

How to ascertain this Bosch Exhaust Oxygen Sensor certainly will work with no unwanted byproduct in your engine? Double check compatibility confirmation is fully relevant with your model specifications then read High Notes Tips PDF.

Did you know? Increasing number of ATV lovers are willing to install aftermarket O2 Sensor especially Bosch, due to the saving you can attain when waiving off the extremely pricey - original equipment part and the purchase from stock dealer.

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KEY TAKEAWAYS

• The P2V for this Bosch Air Fuel Sensor certainly warrants money saving on your investment due to the far lower price than factory equipment dealers’ rates.
• You snatch from us genuine Bosch Exhaust Air Fuel Sensor so you can be 100% sure you receive definitely The First Class Quality Parts and additionally the High Grade in business.
• Bosch A/F Sensor is the Highest Grade - Lambda Probe on today’s market.
• If you install this Magnum AF Sensor your Trailmaster 300 EFI XRS4E your local dealer is not in the position to void the factory warranty. According to the Magnuson-Moss Warranty Act, a vehicle / vessel equipment manufacturer cannot void the factory warranty due to a non-factory equipment or aftermarket part unless they can prove that this part was the cause of or contributed to the failure of the vehicle

Oxygen sensors are used to reduce emissions, by ensuring that engines burn their fuel efficiently and cleanly. Robert Bosch GmbH introduced the first automotive lambda probe in 1976. The sensors were introduced in the US from about 1980, and were required on all models of cars in many countries in Europe in 1993. By measuring the proportion of oxygen in the remaining exhaust gas, and by knowing the volume and temperature of the air entering the cylinders amongst other things, an ECU can use look-up tables to determine the amount of fuel required to burn at the stoichiometric ratio (14.7:1 air:fuel by mass for gasoline) to ensure complete combustion. When an internal combustion engine is under high load (such as when using wide-open throttle) the oxygen sensor no longer operates, and the engine automatically enriches the mixture to both increase power and protect the engine.

Internal Design

The sensor element is a ceramic cylinder plated inside and out with porous platinum electrodes; the whole assembly is protected by a metal gauze. It operates by measuring the difference in oxygen between the exhaust gas and the external air, and generates a voltage or changes its resistance depending on the difference between the two. The sensors only work effectively when heated to approximately 300°C, so most lambda probes have heating elements encased in the ceramic to bring the ceramic tip up to temperature quickly when the exhaust is cold. The probe typically has four wires attached to it: two for the lambda output, and two for the heater power.

Operation of the Zirconia O2 Sensor

The zirconium dioxide, or zirconia, lambda sensor is based on a solid-state electrochemical fuel cell called the Nernst cell. Its two electrodes provide an output voltage corresponding to the quantity of oxygen in the exhaust relative to that in the atmosphere. An output voltage of 0.2 V (200 mV) DC represents a lean mixture. That is one where the amount of oxygen entering the cylinder is sufficient to fully oxidize the carbon monoxide (CO), produced in burning the air and fuel, into carbon dioxide (CO2). A reading of 0.8 V (800 mV) DC represents a rich mixture, one which is high in unburned fuel and low in remaining oxygen. The ideal point is 0.45 V (450 mV) DC; this is where the quantities of air and fuel are in the optimum ratio, called the stoichiometric point, and the exhaust output will mainly consist of fully oxidized CO2. The voltage produced by the sensor is so nonlinear with respect to oxygen concentration that it is impractical for the electronic control unit (ECU) to measure intermediate values - it merely registers "lean" or "rich", and adjusts the fuel/air mixture to keep the output of the sensor alternating equally between these two values. This type of sensor is called 'narrow band', referring to the narrow range of fuel/air ratios to which the sensor responds. The main disadvantage of narrow band sensors is their slow response: the control unit determines the exhaust gas composition by averaging the high and low swings in the sensor's output, and this process creates an inevitable delay.

Bosch patented ceramic technology affords best-in-class performance. The ceramic element is a critical part of the Exhaust Air Fuel Sensor. Bosch's patented materials and processes ensure sensational quality and engine performance. Also it sounds reassuringly, major vehicle manufacturers place their trust in Bosch AF Sensors.

Compatibility

Our Bosch Exhaust Air Fuel Sensor is available to all Utility Vehicles fitted with 1 up to 4-wire zirconia Exhaust Gas Oxygen Sensors, torqued in M18 x 1.5mm threaded nut. This AF Sensor will fit your Trailmaster 300 EFI XRS4E if it is fitted with 1 up to 4-wire narrowband zirconia Exhaust Oxygen Sensor, front or post. Heavy exhaust alterations like catalyst converter bypasss, catless exhaust systems or headers trigger Check Engine Light. In this instance the replacement of the O2 Sensor will not cease CEL issues. If so, you need to wire up oxygen sensor simulator to the downstream Exhaust Gas Oxygen Sensor(s)' harness in order to get rid of Power Control Module safe mode causes the engine run inefficiently ruining both Power Potential and fuel burn.

Exhaust Oxygen Sensors are recommended to be replaced after each 50.000 miles - 80.000 km.

Bosch Trailmaster 300 EFI XRS4E Lambda Sensors excel over any other brand in regards to reliability and durability.