coozer
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| posted on 28/4/08 at 03:16 PM |
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Locost Lambda
Now then, I know that there has been a lot of coverage on AFR and the like but it leaves me totally in the dark...
Is there a locost setup using an OEM sensor? I want to set up a system to check my current carb setup them again when I move to injection.
What required between the sensor and AFR meter??
Steve
1972 V8 Jago
1980 Z750
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meany
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| posted on 28/4/08 at 03:29 PM |
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a usefull site.
http://www.gendan.co.uk/
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David Jenkins
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| posted on 28/4/08 at 03:32 PM |
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There's also JAW, but that's only Locost if you solder it up yourself. You'll also
need the sensor to make it work.
It's a very techie option, as you'll have to muck around somewhat to make it work.
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MikeRJ
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| posted on 28/4/08 at 03:38 PM |
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That depends on your interpretation of "locost"!
The only sensor worth having for checking actual AFR's is a wideband sensor. The vast majority of cars use a narrowband sensor that just tells
you if the mixture is rich or weak, but not by how much which is one of the reasons why an OEM EFI system cycles between rich and lean continuously
under cruise conditions.
Fortunately, some newer cars now use a wideband sensor, so the cost of them has dropped hugely in the last couple of years, though they are still
somewhat more expensive than a narrowband sensor, and they require more sophisticated electronics to use them than a narrowband does.
The popular systems for DIY use are the nicely made Innovate LC-1 which comes with
software and sensor, and the more locost style JAW controller. Note that the JAW is just the
controller, you need to source the Bosch Wideband Sensor yourself.
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coozer
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| posted on 28/4/08 at 06:57 PM |
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What I meant by locost was digging around scrapyards taking advantage of the big 4's years of investment and maybe just purchasing a display.
BUT, the JAW looks right up my street as I used to repair Zafira power steering ECU's
1972 V8 Jago
1980 Z750
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