Wideband lambda - to analyse flat spot?
Discussion
Another post in E&D, I'm learning a lot here!
Could I use an aftermarket wideband lambda sensor temporarily on my old-school Mercedes (no catalyst or lambda sensor) to analyse the air/fuel ratio throughout the rev range, on the road? I'm trying to trace a flat spot at 3-4k. Is it worth it or a waste of time? An aftermarket sensor is not that cheap, you see, just for a little piece of information...
Could I just use a cheapo Bosch wideband sensor and hook it up to my own method of monitoring (or logging) the output? That would be somewhat cheaper than the £120+ for a full kit, "controller" (?), sensor etc. More importantly, does it have to be mounted in the exhaust requiring hole cutting? or can you just mount it at the exhaust outlet??
Could I use an aftermarket wideband lambda sensor temporarily on my old-school Mercedes (no catalyst or lambda sensor) to analyse the air/fuel ratio throughout the rev range, on the road? I'm trying to trace a flat spot at 3-4k. Is it worth it or a waste of time? An aftermarket sensor is not that cheap, you see, just for a little piece of information...
Could I just use a cheapo Bosch wideband sensor and hook it up to my own method of monitoring (or logging) the output? That would be somewhat cheaper than the £120+ for a full kit, "controller" (?), sensor etc. More importantly, does it have to be mounted in the exhaust requiring hole cutting? or can you just mount it at the exhaust outlet??
Edited by pentoman on Wednesday 16th May 09:37
lambda sensors really need to be mounted inside the exhaust collector ( the point where the 4 exhaust pipes join)
As they don't properly until they're warmed up, potentially if you've got a heated sensor it may work if you chuck it up the tailpipe but I certainly wouldn't recommend it
Matt
As they don't properly until they're warmed up, potentially if you've got a heated sensor it may work if you chuck it up the tailpipe but I certainly wouldn't recommend it
Matt
A wideband is an invaluable tool, and worth every penny.
Yes you can use it up the tailpipe with a suitable adaptor.
It will cost more than £120 including an AFR display.
Cheapest option is probably an LC-1 with a simple voltmeter type display. Still talking about £150 all in for that, plus a little work.
But worth every penny if you work or tune cars.
Yes you can use it up the tailpipe with a suitable adaptor.
It will cost more than £120 including an AFR display.
Cheapest option is probably an LC-1 with a simple voltmeter type display. Still talking about £150 all in for that, plus a little work.
But worth every penny if you work or tune cars.
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