Quick Details

• Type:

  Oxygen Sensor

• Car Make:

  Mitsubishi

• Model Number:

  Mitsubishi oxygen sensor 234-4742

• warranty of Oxygen Sensor:

  one year

• Place of Origin:

  China

• Samples:

  Charge

• Sample Price:

  21

• Delivery Time:

  3 Working Days For 234-4742 Oxygen Sensor

• Packing:

  We Use 2 Layers Packing To Make 234-4742 Auto Oxygen Sensor Safe.

• Delivery Port:

  Shenzhen

• Max. Production Capacity:

  10000 Sets

• Export Ratio:

  91% - 100%

• OE Experience:

  No

Product Name:Auto Oxygen Sensor 234-4742 Use On Mitsubishi Car

Auto Oxygen Sensor 234-4742 Use On Mitsubishi Car

Application

Auto Oxygen Sensor 234-4742 use on Mitsubishi car

Product Description:

OEM No/Model: 234-4742 Auto Oxygen Sensor
Auto Oxygen Sensor 234-4742 use on Mitsubishi car
Auto Oxygen Sensor 234-4742 oxygen sensor (or lambda sensor) is an electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed.


Automotive oxygen sensors, colloquially known as O2 sensors, make modern electronic fuel injection and emission control possible. They help determine, in real time, if the airfuel ratio of a combustion engine is rich or lean. Since oxygen sensors are located in the exhaust stream, they do not directly measure the air or the fuel entering the engine but when information from oxygen sensors is coupled with information from other sources, it can be used to indirectly determine the air-fuel ratio. Closed loop feedback-controlled fuel injection varies the fuel injector output according to real-time sensor data rather than operating with a predetermined (open-loop) fuel map. In addition to enabling electronic fuel injection to work efficiently, this emissions control technique can reduce the amounts of both unburnt fuel and oxides of nitrogen entering the atmosphere. Unburnt fuel is pollution in the form of air-borne hydrocarbons, while oxides of nitrogen (NOx gases) are a result of combustion chamber temperatures exceeding 1,300 kelvin due to excess air in the fuel mixture and contribute to smog and acid rain.
Parameter of Auto Oxygen Sensor 234-4742
 

Part Number	HKAOS-234-4742	Drawing No.	234-4742
Brand Figure	Shumatt	Applicable models	Mitsubishi
Sensor length(cm)	8.5	Type	Four-wire
Total Length(cm)	60	Line length(cm)	46.5

 
Function of a lambda probe
Lambda probes are used to reduce vehicle emissions by ensuring that engines burn their fuel efficiently and cleanly.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.
Location of the probe in a system
The probe is typically screwed into a threaded hole in the exhaust system, located after the branch manifold of the exhaust system combines, and before the catalytic converter. New vehicles are required to have a sensor before and after the exhaust catalyst to meet U.S. regulations requiring that all emissions components be monitored for failure. Pre and post-catalyst signals are monitored to determine catalyst efficiency. Additionally, some catalyst systems require brief cycles of lean (oxygen-containing) gas to load the catalyst and promote additional oxidation reduction of undesirable exhaust components.
Sensor failures
Normally, the lifetime of an unheated sensor is about 30,000 to 50,000 miles (50,000 to 80,000 km). Heated sensor lifetime is typically 100,000 miles (160,000 km). Failure of an unheated sensor is usually caused by the buildup of soot on the ceramic element, which lengthens its response time and may cause total loss of ability to sense oxygen. For heated sensors, normal deposits are burned off during operation and failure occurs due to catalyst depletion. The probe then tends to report lean mixture, the ECU enriches the mixture, the exhaust gets rich with carbon monoxide and hydrocarbons, and the fuel economy worsens.
Leaded gasoline contaminates the oxygen sensors and catalytic converters. Most oxygen sensors are rated for some service life in the presence of leaded gasoline but sensor life will be shortened to as little as 15,000 miles depending on the lead concentration. Lead-damaged sensors typically have their tips discolored light rusty.
Another common cause of premature failure of lambda probes is contamination of fuel with silicones (used in some sealings and greases) or silicates (used as corrosion inhibitors in some antifreezes). In this case, the deposits on the sensor are colored between shiny white and grainy light gray.
Leaks of oil into the engine may cover the probe tip with an oily black deposit, with associated loss of response.
An overly rich mixture causes buildup of black powdery deposit on the probe. This may be caused by failure of the probe itself, or by a problem elsewhere in the fuel rationing system.
Applying an external voltage to the zirconia sensors, e.g. by checking them with some types of ohmmeter, may damage them.
Some sensors have an air inlet to the sensor in the lead, so contamination from the lead caused by water or oil leaks can be sucked into the sensor and cause failure.
Symptoms of a failing oxygen sensor includes:
Sensor Light on dash indicates problem
Increased tailpipe emissions
Increased fuel consumption
Hesitation on acceleration
Stalling
Rough idling

Shumatt is a professional auto goods supplier in china. Our main business including bus air conditioning parts and auto diagnostic tool. Shumatt online mall is in goautogoods ( auto air con parts supplier & auto tools seller).Your one step purchase website for all auto goods! Compressor: ...[Read More]

Company Profile:

• Main Product:

  Bus air condition parts, bus compressor, auto diagnostic tool, auto parts

• Business Type:

  Trading Company

• Current Export Market:

  North America, South America, Eastern Asia, Southeast Asia, Mid East

• Total Annual Sales:

  USD 500,001 - 1,000,000

Factory Profile:

• Number of Employees:

  Less than 50 People

• Shift:

  1

• Size of Factory In Square Meters:

  1200

• Years of OEM Experiences:

  4

Research & Development:

• Capability for Synchronized Development:

  Develop according to drawing or samples provided by clients?Yes

  Develop 3-D model and prototype according to client's needs?

• Lead Time for New Product Development:

  10 working days

• Tooling Design:

  Outsourcing or Cooperation

• Source of Tooling:

  Outsourcing

• Software/Profile:

  AUTOCAD