Is there a way to map a/f w/ Livewire?

chad05gt · January 1st, 2009, 11:52 AM

Is there a way to map or log a/f with Livewire?

jahudso2 · January 1st, 2009, 08:27 PM

I have a friend with an older cobra who does this. You have to use a wideband 02 sensor though. He said something about using an 02 sensor from a volkswagon beetle or something which costs 40 bucks and is a wideband. Then you have to have a signal conditioner to convert it from the output voltage of the 02 sensor to an actual A/F ratio. You would have to mount this in your exhaust before your cats or else it will not get accurate readings. Sorry its broken information, but if you do a google search for using volkswagon wideband 02 sensors, you can probably find out what year and model that was and also a cheap signal conditioner. Hope that helps some. Oh yeah, he uses an X-Cal II.

MorePowerMike · January 4th, 2009, 11:24 AM

Originally Posted by chad05gt

Is there a way to map or log a/f with Livewire?

Yes, you will need a wideband O2 sensor as mentioned above. You will also need a firewire cable; you'll be cutting it in half and wiring it up to the output cables of the wideband.

Attached is the wiring diagram; if you end up connecting a wideband you will need it.

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January 1st, 2009, 08:27 PM	#2
jahudso2 Regular Join Date: Dec 2008 Posts: 68 iTrader: 0 reviews	I have a friend with an older cobra who does this. You have to use a wideband 02 sensor though. He said something about using an 02 sensor from a volkswagon beetle or something which costs 40 bucks and is a wideband. Then you have to have a signal conditioner to convert it from the output voltage of the 02 sensor to an actual A/F ratio. You would have to mount this in your exhaust before your cats or else it will not get accurate readings. Sorry its broken information, but if you do a google search for using volkswagon wideband 02 sensors, you can probably find out what year and model that was and also a cheap signal conditioner. Hope that helps some. Oh yeah, he uses an X-Cal II.

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