[Diy_efi] Wide Band Sensor - recent experiences ?

[Mike]

Thanks Jim and Chuck for your replies :)

To clarify what I am aiming to do:-

I'm looking to keep my existing EFI for time being but add the wide band
sensor and an "aux EFI" controller principally to allow alternate
fuels to be drawn into the engine in concert with the normal EFI operation
but have the aux EFI unit shift the AFM cal/output so the main EFI will
lean the injectors whilst my add on takes up the slack so to speak.
ie. The two EFI controllers wont be in communication except by virtue of
the fact the aux EFI unit will 'tamper' with the AFM cal or output sent to
the main EFI unit according to the availability of alternate fuel and other
conditions (I have a heck of a long list of exceptions and getting longer;)

Ideally I'll be looking for supplementing the fuel source with 2 or 3 other
liquid fuels which might require some heating (upon flow), containment of 
vapours, PID type control etc

I'd feel rather more comfortable doing this with (one or two) wideband sensors
and as it will have a few excursions at close to WOT on those long
country trips I'll be interested to see how stable it is and I take your point
that having it further down the line prob just before CAT would be best
to avoid overheating as I am running at turbo at around 10psi boost...

Thanks for the links, dont know what 'GP' is though the third gen forum
looks interesting, thanks guys

Rgds

Mike


At 11:56 PM 8/27/06, you wrote:
>MIke....
>  see if this helps...
>  1) about $300-$500 for a good setup with good O2
>  3) have heard of nothing on the GP board.... and they use alky and N02
>  4) if the O2 bung is placed far enought away from exhaust head, some leave it in all the time and use 4th wire for pcm
>   
>  jim
>
>Mike <niche at iinet.net.au> wrote:
>  Hi Chaps,
>
>Exploring upgrading the EFI in my vehicle to handle other liquid
>fuels and one of the issues is a wide band oxygen sensor, so I'm
>asking the following questions from anyone on this group in
>respect of your recent experiences with any aftermarket commercial
>products etc
>
>1. Overall cost of a sensor and driver board to either use it
>as a tuning aid or for dash display ?
>
>2. Long term reliability of most recent type of sensors ?
>
>3. Resistance of contemporary sensors to handle combustion
>byproducts from fuels such as ethanol, isopropanol, methane,
>LPG, methanol etc in terms of reliability, calibration etc ?
>
>4. Feasability of using the wideband sensor in an EFI controller
>that functions close to wide open throttle or perhaps higher load
>than appears that the normal narrow band systems function ?
>
>
>
>Regards from
>
>
>Mike
>Perth, Western Australia
>VL Commodore Fuse Rail that wont warp or melt !
>Twin tyres for most sedans, trikes and motorcycle sidecars
>http://niche.iinet.net.au
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Regards from


Mike
Perth, Western Australia
VL Commodore Fuse Rail that wont warp or melt !
Twin tyres for most sedans, trikes and motorcycle sidecars
http://niche.iinet.net.au