o2 simulator for Subaru WRX?

[kitty143cat]

o2 simulator is a device that can be used to avoid Check Engine when catalytic converter is removed in OBDII cars. It simulates the secondary oxygen sensor signal and makes ECU 'think' that converter is present and is in working condition. This prevents ECU to set the error code and light up Check Engine indicator.WHERE CAN I BUY ONE OF THESE?

[PaulieWalnuts8296]

Most Subaru performance parts retailers sell the CEL fix. Links below.

[I3mySuby9843]

A lot of places used to sell them but I can't seem to find one anywhere now. Your best choice should be to get a tune. Adding a down pipe to your car may have added 5 to 10 hp but a tune will unleash another 50 or so and they can program the ECU to ignore the 02 code but read ready so the light won't come on for it. Another method I see people use is to weld a short tube to the 02 bung to pull the sensor out of the direct path of the exhaust and it usually keeps from triggering the light.

[ChrisCuevas0446]

There is also the resistor fix as well. Going to Radio Shack and buying a 2.2 ohm resistor and sticking both ends into the o2 sensor harness will keep that pesky CEL from turning on as well!There are so many CEL kits out there. I would try the resistor fix before spending unecessary cash.