How do I know if I have wideband or narrowband?
FInd the first one on the list and click on it to go to detail page. Scroll down past the “Features and Benefits” section, and look for “OXYGEN SENSOR TYPE” It will tell you if it is Narrow-Band or Wide Band (heated or un heated doesn’t matter to us). Jot down what you need and you are READY TO ORDER an EFIE!
What’s the difference between a narrowband and wideband O2 sensor?
If the ratio is not within the “Closed Loop O2” operating perameters it just waits until it comes back into that range again. This is where the Wideband O2 Sensor comes into play. A wideband sensor looks similar to a Narrowband but typically has 6 wires and a bulkier mating connector to the engine harness.
How does a narrowband O2 sensor work on an ECU?
The ecu with a narrowband o2 sensor, when in closed loop mode, will then lean on the fuel map if it is receiving a rich signal from the o2 sensor till its stoic. The opposite would be true if the sensor was telling the ECU that it was currently running lean, it would richen the fuel map till the o2 sensor was reading stoic.
Can a dual channel O2 sensor be used?
The dual-channel has the advantage of being able to output both a 0-5V and 0-1V signal simultaneously. This seemingly would allow you to eliminate the stock O2 sensor, run the 0-1V to the ECU and the 0-5V for logging, but people trying to use the 0-1V mode on the gauge-type to drive the ECU have been unsuccessful in making the car run.
What should a pre-cat oxygen sensor reading be?
So if we are looking at a pre-cat sensor, the ECU tries to keep the mixture at a LAMBDA of 1 or STOCHIOMETRIC of 14.7:1 which is a reading of about half a volt from the sensor. Unfortuneatly, narrow band oxygen sensors are not really that accurate once the mixture gets away from that LAMBDA of 1.
If the ratio is not within the “Closed Loop O2” operating perameters it just waits until it comes back into that range again. This is where the Wideband O2 Sensor comes into play. A wideband sensor looks similar to a Narrowband but typically has 6 wires and a bulkier mating connector to the engine harness.
What kind of wire does an oxygen sensor use?
3 wire sensors have a signal wire and the other two wires are for the heater circuit. Again the signal earth is through the body of the sensor. 4 wire sensors have a signal wire and a signal earth wire and two wires for the heater circuit. Oxygen sensors don’t work very well until they a very hot.
So if we are looking at a pre-cat sensor, the ECU tries to keep the mixture at a LAMBDA of 1 or STOCHIOMETRIC of 14.7:1 which is a reading of about half a volt from the sensor. Unfortuneatly, narrow band oxygen sensors are not really that accurate once the mixture gets away from that LAMBDA of 1.
What are the signal wires on a wideband sensor?
If your sensor is a wideband sensor, there will be TWO SIGNAL WIRES – these are called the “Current Pump” wires. The voltages on these current pump wires varies from manufacturer to manufacturer.