ianminki
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| posted on 17/9/15 at 11:04 AM |
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koso rpm help
hi all
looking for some help with rpm setting's on my koso rx2n as the reading is very unstable once out on the road.my car has a 893 fire blade
engine. the reading is steady when ticking over but becomes very unstable when accelerating . I have used the ecu for rpm output is this right
regards ian
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craig5
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| posted on 4/10/15 at 06:16 PM |
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Where have you taken the feed from?
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theduck
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| posted on 4/10/15 at 06:23 PM |
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Have you put a resistor inline?
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CosKev3
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| posted on 4/10/15 at 08:04 PM |
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My koso connected to my R1 is like this.
Wouldn't work at all using feed from CDU to clocks,so connected it into wiring from the coil packs as per koso instructions.
Interested in the resistor mentioned above? 
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craig5
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| posted on 4/10/15 at 08:11 PM |
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I'm from coil and at 1st the revs had life of there own so I shielded the wire and revs are now perfect
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CosKev3
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| posted on 4/10/15 at 08:19 PM |
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quote:
Originally posted by craig5
I'm from coil and at 1st the revs had life of there own so I shielded the wire and revs are now perfect
Will try that cheers.
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craig5
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| posted on 4/10/15 at 08:23 PM |
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I'm only in n Wales can get some great shielding in work if u want to get it
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theduck
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| posted on 4/10/15 at 08:28 PM |
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quote:
Originally posted by CosKev3
My koso connected to my R1 is like this.
Wouldn't work at all using feed from CDU to clocks,so connected it into wiring from the coil packs as per koso instructions.
Interested in the resistor mentioned above?
On my acewell I had to put a 1m ohm resistor in line to get a smooth reading.
As mentioned, shielding is the other common issue. Best using coax cable (aerial cable) use the core for signal and the connect the outer to earth.
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Fill589
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| posted on 25/11/15 at 07:47 PM |
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Mine does the same I find running with side lights on stops it ?
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DRM Black7
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| posted on 25/11/15 at 08:06 PM |
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I had a similar problem with an Etb rev counter, very unstable rpm and bouncing all over the place. Spoke to etb and they surjested this diode,
http://www.maplin.co.uk/p/1n4007s-1a-silicon-rectifier-ql79l
I had already tried a resister.
The Diode did the trick
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