corrado vr6
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| posted on 28/1/14 at 07:13 PM |
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Bec IVA emissions, 3mins??
Hi there,
I have had 2 IVA tests now and this Friday ill be having my 3rd, each time I've had emissions test I have to hold it at 2500rpm for 3mins I just
wanted to check this is all the norm as my tester has made a few errors in his assumptions on previous tests and it just entered my head that maybe
he's wrong here, it's not a problem as its been mapped now and did show a lambda reading of 1 (lambda is what it failed on before) however
it did fluctuate a little but did go to 1 for a while.
So has it got to be on the machine for 3 mins and has it got to stay within the limits for the whole 3mins?
I know I've asked lots of questions about emissions and IVA etc but this time I have to get it right and so I want to make sure my examiner is
correct to.
2006 R1 injected with cat fitted
[Edited on 28/1/14 by corrado vr6]
http://r1indy7.wordpress.com/
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rusty nuts
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| posted on 28/1/14 at 08:22 PM |
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As long as the lambda reading is 0.97 to 1 .03 with Both C.O. And H.C s below200 PPM at the same time the fast idle test can take as little as
20seconds although a further 30seconds pre conditioning at 2500 to 3000 rpm is needed followed by testing at idle. Just notice you have a bike engine
but IIRC the regs are the same
[Edited on 28/1/14 by rusty nuts]
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corrado vr6
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| posted on 28/1/14 at 08:29 PM |
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Ok, now I may have understood this wrong, but are you saying it also needs to pass and idle test too, sorry I know I should know this but my examiner
isn't very forthcoming with advice and its never been close to passing before so never got past the fast idle bit
http://r1indy7.wordpress.com/
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CosKev3
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| posted on 28/1/14 at 09:01 PM |
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Thats my understanding of it,same as MOT test I think,fast idle and idle test.
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corrado vr6
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| posted on 28/1/14 at 09:19 PM |
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So as soon as all 3 (co, hc and lambda) are correct and stable the fast idle test can be stopped and moved on to the idle test?
http://r1indy7.wordpress.com/
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adithorp
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| posted on 28/1/14 at 09:57 PM |
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Correct.
Fast idle test between 2500-3000, lambda 0.97-1.03, CO<0.3%, HC <200ppm.
Then idle test, CO<0.3%, HC <200ppm (no lambda requirement on the idle test)
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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corrado vr6
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| posted on 28/1/14 at 09:59 PM |
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Ok that's so much clearer now
Thanks all 
http://r1indy7.wordpress.com/
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