corrado vr6
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| posted on 21/11/13 at 07:45 PM |
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Do I need a lambda sensor for BEC IVA?
Hi there, I have an MK INDY with an 06 injected R1, I went for IVA a few weeks ago and failed on the Lambda reading, i had a power commander fitted
and I had borrowed an IVA map from someone else that had passed with a simular setup to mine.
I was talking to a mechanic friend of mine this evening and he thinks I should have a lambda sensor fitted to my manifold, so my question is, would
this be worth doing or should the power commander and the right map be good enough to pass?
http://r1indy7.wordpress.com/
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Davg
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| posted on 21/11/13 at 08:08 PM |
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Def no! You should be able to adjust emissions via powercommander. Best adjusted at your friendly mot station if you can. Goes withou saying you
need to know how to adjust the pow com.
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corrado vr6
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| posted on 21/11/13 at 08:12 PM |
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Cool thanks, that's saved me a bit of work 
http://r1indy7.wordpress.com/
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theprisioner
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| posted on 22/11/13 at 12:50 AM |
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Do you need a CAT or is a Power Commander enough?
http://sylvabuild.blogspot.com/
http://austin7special.blogspot.co.uk/
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corrado vr6
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| posted on 22/11/13 at 06:39 AM |
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I have a cat fitted and still failed, so I would say yes you need a cat and not a bike as they are not big enough from what I've read in the
past.
http://r1indy7.wordpress.com/
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renetom
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| posted on 22/11/13 at 08:41 AM |
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Hi
We had the same fail on our 1st IVA, ours is earlier carbed engine.
Took it to a local racing company & they tried absolutely everything
to get the lambda down, they eventually got it 99% there , so we
decided to try again, however before the test I decided to fit a
shut off valve to the AIS air intake pipe which normally goes to the
airbox , during the test the examiner said it was still a bit high so I
turned the valve down gradually & eventually off completely
That did it & it passed with flying colours.
1. Check the are no air leaks anywhere on the exhaust
2. make sure the cat is nice & hot just before the test.
 
AIS Shut off valve
Its just a plastic turn off valve with one end cut off.
You can have ours if you want it.
Good luck
René.
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corrado vr6
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| posted on 22/11/13 at 05:10 PM |
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Thanks for that tip 
http://r1indy7.wordpress.com/
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theprisioner
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| posted on 24/11/13 at 11:02 AM |
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I have just bought a Westfield Megabusa and have been wondering ever since how the original owner got it thru the IVA. It has a YR2000 engine a YR2004
chassis and a first REG of 2009. It has a Power Commander III and a sports CAT and no Lambda sensor. YR2000 Hayabusa's did not have a Lambda/
ECU. It appears to scrape thru the MoT on a retest limit on recent MoT's. My local garage told me that he never checks emissions on a Q plate
unless it is emitting smoke. It appears the MoT man has some discretion on Q plated cars for some reason. The emissions limit at the IVA test is
clearly marked on the log book (Lambda = 0.07 - 1.03).
Questions: Are all my above assumptions/views correct?
http://sylvabuild.blogspot.com/
http://austin7special.blogspot.co.uk/
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CosKev3
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| posted on 30/12/13 at 07:56 PM |
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quote:
Originally posted by theprisioner
I have just bought a Westfield Megabusa and have been wondering ever since how the original owner got it thru the IVA. It has a YR2000 engine a YR2004
chassis and a first REG of 2009. It has a Power Commander III and a sports CAT and no Lambda sensor. YR2000 Hayabusa's did not have a Lambda/
ECU. It appears to scrape thru the MoT on a retest limit on recent MoT's. My local garage told me that he never checks emissions on a Q plate
unless it is emitting smoke. It appears the MoT man has some discretion on Q plated cars for some reason. The emissions limit at the IVA test is
clearly marked on the log book (Lambda = 0.07 - 1.03).
Questions: Are all my above assumptions/views correct?
Pretty sure Q plates are visual check only,MOT tester should not go near it with a probe!!!
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