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2005 RL stock widebands how to interface?

Posted: Sun Oct 23, 2016 7:43 am
by fuzzysig
05 RL came with 2 widebands one for each bank

what would be the best way to get readings from both of them?

I was reading that hooking up an air fuel gauge will affect the voltages and fueling

Re: 2005 RL stock widebands how to interface?

Posted: Tue Oct 25, 2016 9:43 am
by Fred
More context, please:

What's an RL?
Get readings how? Into what?

I could guess a bit more, but it'd be better if you spelled it out a bit better :-)

Re: 2005 RL stock widebands how to interface?

Posted: Tue Oct 25, 2016 11:19 pm
by fuzzysig
acura RL

readings from the stock wideband sensors without affecting the voltage that goes to the ECU from those wideband sensors

because of the SH-awd theres no k-pro or any kind of ecu mods

but I'm so used to having a wideband gauge in my car. I want to add one to this car but since it uses 5 wire o2 sensors from the factory I was wondering if its possible to add an air fuel ratio gauge and what would be the best way to wire it up

Re: 2005 RL stock widebands how to interface?

Posted: Fri Oct 28, 2016 11:52 pm
by Fred
I guess the first thing is that it's pointless if you have no control of the mixture, get normal mileage, and the car drives OK.

Second thing is that the 5 wires tell you nothing without a controller attached to them. Key word, controller. One controller. Two cooks spoil the broth. You can't just read a voltage. Thus you need to intercept the signal post the factory controller. Or replace them. Neither of those things seem feasible.

So third: If you want a gauge that bad, weld in new bung/bungs and run an aftermarket controller and sensor and gauge in parallel.

Re: 2005 RL stock widebands how to interface?

Posted: Wed Nov 02, 2016 2:50 am
by fuzzysig
ok that makes sense.
are there any obd2 port adapters like scangauge or similar that would read air fuel ratio?
I tried ultragauge but it doesn't show it just long and short trim.
the only way to change anything would be a vtec controller and adjusting fuel pressure as far as I know.
after adding boltons. I usually end up increasing the fuel pressure slightly and it helps to get proper fuel at the higher rpm in open loop