trying to install some O2 sims, they need 12V source not coming from the O2 harness and only on when ignition is on. anyone else using these?...where did you end up mounting them?

where should i get the 12v power from???

 

the radio 12v was suggested...can you get to this wire without pulling the radio out?

 

Be careful with electrical o2 simulators in general. If you must, I would suggest spacers for the o2 sensor (search spark plug anti fouler, or o2 spacers) instead of the electrical unit if you have issues with your catalytic converter. If your o2 sensors are bad, then I really recommend replacing the sensors.

 

tried that before couldn't get them not to throw codes even with several attempts w spacers. curious, why do you say be careful w/ O2 sims?

 

bump...anyone?

 

O2 sim sends uniform signal to the engine. Some have adjustable feed, but the signal does not adjust automatically, meaning your ECU will set the mixture at one value. This will impact 2 things.
1. Incorrect mixture will affect the performance of the car. It can be severe enough that the can can run like ****.
2. More importantly, if you have perfectly working catalytic converters, incorrect mixture will foul that up very quickly. As we all know, our converters are not cheap.

 

no this is to pass inspection, on the post cat. sensors. i've got bosch up front.

so no one can suggest a wire to tap to get the 12V??

 

bump.......

 

ITs not hard to get a 12v signal. If you really need to just splice it into the battery