Are oxygen sensor spacers legal in California?

Are oxygen sensor spacers legal in California?

It’s not legal in CA, but legal anywhere else. The “for off road use only” way to do it is to move the rear oxygen sensor to the ‘Federal’ location after the second cat using a new bung and wiring extension. Then the California manifold/precat setup can be replaced by a header or Federal manifold.

Do oxygen sensor extenders work?

O2 spacer extends the gap between the o2 sensor and the exhaust gases, with an increased gap, it will provide a lower Co2 reading. Does the o2 spacer guarantee to work on all vehicles? No, it doesn’t, as each vehicles produces different level of emissions, and may not work on all emission levels.

Are O2 sensor spacers universal?

Fitment is UNIVERSAL – please check for available space for installation prior to purchasing. For use ONLY in the Secondary (post cat, downstream) O2 sensor. Emissions compliance not guaranteed.

Can you cut and extend O2 sensor wires?

From my understand… Since the O2 sensor is voltage based, extending the wires either on the sensor or on the actual harness between the sensor and ECU will increase the resistance of the circuit. So it doesn’t matter if you extend the O2 wires or the engine harness wires, Ohm’s Law prevails.

What does a car sound like without a catalytic converter?

Loud Vehicle Noises and Missing Catalytic Converter You will find that when driving without your catalytic converter, it will sound like your vehicle is roaring—especially when starting or giving it gas.

Is it OK to not use O2 sensor extender?

The result of this is slightly worse fuel economy, a worse idle, and generally increased difficulty in getting the car tuned to a good state. Summary: DO NOT USE O2 SENSOR SPACERS OR SPARK PLUG ANTI-FOULERS ON 2005 OR NEWER SUBARUS.

What kind of O2 sensor do I need for my 05rs?

You’ll need an O2 sensor wire extender from Casper’s. Works just fine. However, even with an HFC, you’re almost certainly going to get a P0420 on your 05RS. To confirm Williaty’s info, i’ve been running aftermarket EL headers & a high-flow cat for a few months, and the rear O2 sensor was mounted away from the exhaust flow.

Why do O2 sensor isolators do not work?

O2 sensor “isolators” DO NOT WORK! They do exactly opposite of what is claimed. The O2 sensor output would have to be RAISED in voltage to lean out the mix. Taking the sensor out of the exhaust stream lowers the temperature, which LOWERS the voltage and causes the ECU to richen up the fuel air mix ratio!

What happens if you remove the rear O2 sensor?

If you remove the rear O2 sensor entirely, mount it somewhere that isn’t in the exhaust at all (don’t laugh, I’ve seen it done), or even just move it out of the main exhaust flow, you’ll develop strange fueling errors as the ECU tries to make the rear O2 see what it’s programmed to achieve.

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