Chaddy
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| posted on 20/4/13 at 12:57 PM |
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Emissions help
Hi All
I've just spent an over an hour at my mates MOT station trying to get the emissions sorted ready for test on Wednesday and can't get the
fast idle readings anywhere near. The engine is a 2005 R1. We tried minusing all the numbers but still couldn't get close with the HC and
Lambda. I had an SVA map on from adithorp. Any help would be very appreciated.
Thanks
Dave
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rusty nuts
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| posted on 20/4/13 at 03:03 PM |
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Can you post up the figures.
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Chaddy
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| posted on 20/4/13 at 03:53 PM |
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Fast idle
CO% 0.24
HC PPM 445
Lambda 1.24
Temp 67
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rusty nuts
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| posted on 20/4/13 at 04:20 PM |
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quote:
Originally posted by Chaddy
Fast idle
CO% 0.24
HC PPM 445
Lambda 1.24
Temp 67
CO is too high, max would be 0.2% High HC could be down to tight valve clearances, misfire ,plugs etc, CO too high , ignition timing out or an air
leak. Lambda is too high, could be an air leak , weak mixture but looking at the CO unlikely or possibly a leak in the exhaust, it only takes a very
slight leak to cause problems. Is the temperature oil or air, could be a bit higher so could be thermostat. Are you using a cat
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Chaddy
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| posted on 20/4/13 at 04:32 PM |
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I have two cat's on it, one close to the engine and one just before the silencer, engine runs really well with standard map. Temp goes up OK and
fan cuts in, could part of the problem be not getting the cats hot enough?? Don't know what I was really doing with the Power Commander, just
kept leaning it off more and more then gave up as I am sure it is more technical than that!!
Cheers
Dave
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renetom
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| posted on 20/4/13 at 05:01 PM |
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Hi
We have an earlier carbed R1 & failed the IVA first time on emissions
We had Austec Racing de-tune it as much as possible to get them right
but was still borderline.
I then fitted a shut off valve to the ais inlet , & whilst at the IVA turned it down & down
to finally off until the Lambda became ok.
every thing else seemed to fall into place ,
give it a whirl , you've nothing to loose.
Shut it off & see what the readings are.
good luck
René
 
AIS Shut off valve
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Chaddy
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| posted on 20/4/13 at 05:07 PM |
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Thanks for the info Rene, I have removed the ais as part of the breather mod, not sure if this will be causing some of the high readings??
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renetom
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| posted on 20/4/13 at 05:16 PM |
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Hi
Is it all blanked off ?
No leaks on the exhaust system ?
Nice fluffy feather to test for leaks.
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