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Old 05-28-2002, 12:46 AM   #1
ScoobieSnaX
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Join Date: Oct 2001
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Vehicle:
2004 Acura TL Navi
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Question TUNING w/Wideband o2 & link ecu

Greetings,

A few questions for those of you with wideband o2 and link experience...

I'm looking at buying a wideband o2 sensor from this company.

1. Can the probe be installed in the up-pipe bung or is there a better place for it?

2. Are there any issues with using the values from this wideband o2 to tune the link? I know its not possible for the link to read this o2 sensor but I could still use this to tune right??

thanks!

ScoobieSnaX

p.s. If anyone knows of a better wideband let me know!
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Old 05-28-2002, 01:58 AM   #2
JenisonWRX
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abso-friggin-loutly

I've been toying with the idea of getting a true wideband o2 gauge and sensor. My only beef with going outside of the Link system is the loss of datalogging and the data all in one unit.

- I love to log
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Old 05-28-2002, 05:14 AM   #3
SFastWRX
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It's got to be better than the stock rear o2 sensor. My oxy numbers are all over the place, almost like the link's using a random number generator instead of the real voltage. I'm finding the crazy numbers mostly useless in tuning. It would be a lot harder if I wasn't able to pull the logs into Excel and sort by knk/rpm/adv, knk/rpm/tps, etc.

It would be really nice to have reliable o2 numbers that didn't look like freaky sin waves in a graph.
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Old 05-28-2002, 11:19 AM   #4
Jon [in CT]
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Default Re: TUNING w/Wideband o2 & link ecu

Quote:
Originally posted by ScoobieSnaX
1. Can the probe be installed in the up-pipe bung or is there a better place for it?

2. Are there any issues with using the values from this wideband o2 to tune the link? I know its not possible for the link to read this o2 sensor but I could still use this to tune right??
...
p.s. If anyone knows of a better wideband let me know!
I believe I would wish to install the wideband sensor at the spot where Subaru used to install the front O2 sensor on WRXes prior to the New Age version. That would be in the downpipe, just downstream from the turbocharger. If you're lucky and have an aftermarket downpipe that was derived from a pre-New-Age-WRX design (such as BPM's), it will already have an O2 sensor bung in that location.

Doesn't the LINK have provision for a 0-5V non-O2-sensor input? If so, you could feed the output from the FJO controller to the LINK, instead of to a display or PC. You would use the graph, shown below, to interpret the controller's output voltage. You might even be able to persuade the LINK to use the wideband controller voltage for closed-loop control, instead of the 0-1V rear O2 sensor.

The FJO is very good. A less-expensive alternative that uses the same wideband sensor is available here.
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