the main hurdle would be ONLY using E85, not switching back and forth.
The A/F doesnt matter, its an O2 sensor it reads Oxygen the PCM wants 14.7=1 Lambda, if you change to E85 and leave the computer thinking its gasoline it will still try to get 14.7 or Lambda 1(which will really be A/f of 9.2 or whatever). A/F is just a number like HP, to get it you use a multiplier and the real data which is Lambda or Torque, its just that people use different multi's to get different A/F's and normally dont with HP.
A narrowband 02 sensor cannot read this range, sometimes when a a/f ratio is WAY outside the range of a sensor it has the nasty tendency to peg Pig RICH even when it's actually a lean condition. I don't need to tell you what this would do to your a/f ratio.
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[W]e made a great mistake in the beginning of our struggle, and I fear, in spite of all we can do, it will prove to be a fatal mistake. We appointed all our worst generals to command our armies, and all our best generals to edit the newspapers Robert E Lee
A narrowband 02 sensor cannot read this range, sometimes when a a/f ratio is WAY outside the range of a sensor it has the nasty tendency to peg Pig RICH even when it's actually a lean condition. I don't need to tell you what this would do to your a/f ratio.
all O2 sensors, even wide bands read Lambda not A/F. Widebands just do it differently and then the A/F is just a conversion you tell a guage to make.
E10, E85, E20, M85, Petrol, Methanol, diesel, keroseen, jet fuel, Propane, Nitromethane, Natural Gas, Wood, what ever, will ALL be read by any O2 sensor as lambda = 1.0 when the mix is stoich. For a narrow band O2 it will pump out .45 volts. Now everyone listen carefully,, this is the tricky part: If you have a wideband with a Gauge SET BY THE USER to OUTPUT LAMBDA = 1.0 = A/F = 14.7, then ALL THE FUELS, WHEN LAMBDA = 1.0, WILL READ AS 14.7 ON THE GUAGE REGARDLESS of WHAT THE TRUE A/F IS!!!
If you change the guage so that Lambda = 1.0 is = to an A/F of, lets say some thing crazy, 45:1, then for ALL fuels when the mix is at stoich will read at 45:1. Now is the A/F really 45:1?? Of course not.
A guage's interpretation of Lambda is all relative to the USER and NOT a function of the O2 sensor.
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Last edited by duster360 : 05-09-2008 at 03:27 PM.
Even though B vans used a JTEC engine module, I can't engine why Chrylser would use a different functioning "ethanol" sensor. I'm sure every model had a different part # sensor to account for a different fuel line, mounting bracket, and electrical connections, but the core sensor is probably the same. I'd still find one from a NGC3 vehical just to keep the variability down.
I deffinately hit up Neil E on this. He's working on it anyway.
Yes, I am working on it, and yes, the '08 Avenger is a NGC car, with an ethanol sensor. I am months away from anything conclusive, so don't start banging on my door for a tune, it's just not there yet, and I won't release anything until it has been tested to my satisfaction.
Yes, I am working on it, and yes, the '08 Avenger is a NGC car, with an ethanol sensor. I am months away from anything conclusive, so don't start banging on my door for a tune, it's just not there yet, and I won't release anything until it has been tested to my satisfaction.
Very cool stuff. I'll keep my eyes on this thread.
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GTFO with your Stage 0 Nonsense!! 
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