Oxygen Simulator

Universal o2 simulator single or dual output for vehicles with one after catalytic converter o2 sensor (usually 4 and inline 6 cylinder engines) or dual output for vehicles with 2 catalytic converters. * Fully assembled and tested simulator. * Microcontroller based for reliability and accuracy. * Reverse voltage and short circuit protection. * Specifically designed printed circuit board. * Completely sealed waterproof package. * Small size 1\"x0.25\"x0.25\" * Off-road use only.

OBDII cars have two oxygen sensors to measure the amount of oxygen contained in the exhaust gas. The first sensor is located on the manifold or header and measures O2 content of the exhaust as it escapes from the cylinders. This sensor is used by the PCM/ECM to calculate fuel trims and look for combustion problems. The second oxygen sensor is located after the catalytic converter and is used only to measure catalytic converter efficiency. The PCM/ECM does NOT use any data from the secondary O2 sensor for engine management. The PCM will set an CEL(check engine light)/SES (service engine soon) / MIL(Malfunction Indicator Lamp) light if the catalytic converter is removed, the sensor is removed, or the sensor goes bad.
When the test pipe is installed and the converter is removed it is necessary to verify that nothing else sets CEL/SES/MIL light and the car can pass OBD emission inspection. The O2 Sensor Simulator generates proper sensor signal which does not let the PCM/ECM to store the error code and set CEL/SES/MIL light.
This product will not work on the following vehicles.
Do not order for: All Audi/VolksWagen/Porsche BMW 1996-1999 M3 and 328i 2003+ Nissan SpecV (works for 1996-2002) ALL Hyundai Tiburon, All Acura RSX Most Mercedes ALL Scion

O2 Simulator

Single Output, or Dual output your choice