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Wide band Lambda - what do I need?

Posted: Thu Jan 14, 2021 9:11 am
by Redseven
Hi,

I'm about to put a loom together to run a 'Busa with an S100Pro.
I'm thinking of fitting a wideband Lambda sensor purely for diagnostic purposes (logging to a separate datalogger over CAN).

What hardware do I need?
I can see that buying a complete Innovate LC-2 kit would be easy enough, but do I need all that would offer?
Are there better or more cost effective options?

Re: Wide band Lambda - what do I need?

Posted: Thu Jan 14, 2021 10:35 am
by Alex DTA
Innovate, AEM, PLX, etc all offer a 5V output to the ECU.
If you want to build one yourself look at 14point7

Pick one that you like best.

Re: Wide band Lambda - what do I need?

Posted: Thu Jan 14, 2021 4:12 pm
by katana
You are fitting an S100Pro on a Busa and you are worried about excessive features of an LC-2! And surely using the LC-2 output for fuel corrections with the ECU would be a bonus? Is the logger for chassis performance monitoring as the S100 has a pretty good onboard logger.

Re: Wide band Lambda - what do I need?

Posted: Thu Jan 14, 2021 5:23 pm
by Redseven
Alex,
OK Thank you.

katana,
'not "worried" about excessive features. 'just looking at options.
"Is the logger for chassis performance monitoring as the S100 has a pretty good onboard logger." - Yes. Chassis/driver performance. Its going in a hillclimb car.

Re: Wide band Lambda - what do I need?

Posted: Thu Jan 14, 2021 5:46 pm
by stevieturbo
I'd stay away from Innovate, simply because they kill sensors.

Re: Wide band Lambda - what do I need?

Posted: Fri Jan 15, 2021 2:30 am
by Redseven
stevieturbo,
Thanks. 'any idea why Innovate would "kill sensors"?
Do you have experience of any of the other options?

Re: Wide band Lambda - what do I need?

Posted: Fri Jan 15, 2021 3:32 am
by Alex DTA
stevieturbo wrote: Thu Jan 14, 2021 5:46 pm I'd stay away from Innovate, simply because they kill sensors.
I have no problems with mine. The sensor is about 3 or 4 years old now.
They did have a problem with the early LC-2s, but fixed that years ago.

The best way to wire them is via the fuel pump relay on the ECU. That way they will only warm up when the engine is running.
That way you can never kill a sensor.

Re: Wide band Lambda - what do I need?

Posted: Fri Jan 15, 2021 10:18 am
by stevieturbo
Redseven wrote: Fri Jan 15, 2021 2:30 am stevieturbo,
Thanks. 'any idea why Innovate would "kill sensors"?
Do you have experience of any of the other options?
Innovate can't even explain...only to argue that they control the sensor better.....not very helpful when it kills sensors.

The remote wideband I mostly use for tuning on various cars would have went through a few sensors a year with Innovate....changed to Zeitronix a few years ago after getting fed up with the hassle....and I think I'm still on a second sensor. The first I used might have actually been one that Innovate wideband reported as faulty.

I've used PLX, Zeitronix, FJO ( they aren't about anymore ) all very reliably.

The Innovate product physically is great quality, it's just a pity that they report so many faulty sensors. Oh that, and when wiring the analogue outputs to various devices, they seem to suffer far more from floating voltages than any other unit too.. At least the outputs are programmable so you can test and dial things in though. But it's a hassle that shouldnt really exist.

Re: Wide band Lambda - what do I need?

Posted: Sat Jan 16, 2021 7:17 am
by SMR
I've used the innovate kit from DTA's website on four cars and over the past three seasons (not counting 2020!) we've not seen any sensor failures (And that's with two of them running methanol as well).

Re: Wide band Lambda - what do I need?

Posted: Sat Jan 16, 2021 9:02 am
by stevieturbo
Maybe something has changed in the last 6 years or so. But after using the Innovate for around a decade, and going through multiple sensors a year ( and on a few different controllers )....not for me.

Of all the widebands I have used, they have been massively the most unreliable.