. I know a
cat will bring it down, but any ideas what else to try to get it down to 0.5? 2001 r1 with a power commander
Just been up to the garage for a pre-mot checkover. First time at this garage run by a recently made friend. Problem is the CO was 4.9% . I know a
cat will bring it down, but any ideas what else to try to get it down to 0.5?
2001 r1 with a power commander
If your car is a q plate ,have a look at your registration document first section 3. Mine says a co limit of 3.5., without the proof tester wanted a co 0.5 based on engine age .
quote:
Originally posted by hobzy
Just been up to the garage for a pre-mot checkover. First time at this garage run by a recently made friend. Problem is the CO was 4.9%
2001 r1 with a power commander
Ta, not had to touch the power commander yet so looks like i'll have to do some research!
Not on a q plate,so going on the emissions on the special notes on the front of my v5.
quote:
Originally posted by Gary 7
If your car is a q plate ,have a look at your registration document first section 3. Mine says a co limit of 3.5., without the proof tester wanted a co 0.5 based on engine age .
quote:
Originally posted by hobzy
Just been up to the garage for a pre-mot checkover. First time at this garage run by a recently made friend. Problem is the CO was 4.9%
2001 r1 with a power commander
I have just started work on my Busa engine for emissions and found that the power commander has made cyclinders 2 and 4 rich and 1 and 3 lean, the
differenc between them is about 9 % CO or 3.5 AFR. I welded emissions take off point son to the down pipes and got an analyser to check each at idle
and found this problem. The issue is with the power commander as the injectroes ahve been flow matched and the air flows balanced and checked with a
flow balancer. when trying to lean out the map th etow lean cyclinders begine to misfire and i get a bonfire in the catalyst. If you have teh same
issue you will need to match all 4 cylinders to egt equal AFR by the advanced map function s and then lean out to about 1.5 % CO or 13.5 AFR. Then add
secondardy air form the PAIR system and you will have the oxygen to oxidise the CO and HC emisisons. operating these engines leaner than 1.5 % CO is
not good without being able to change the ignition and retarding the timing. So i would check the individual cylinder emissions.
Steve
]Originally posted by hobzy
Just been up to the garage for a pre-mot checkover. First time at this garage run by a recently made friend. Problem is the CO was 4.9% . I know a
cat will bring it down, but any ideas what else to try to get it down to 0.5?
2001 r1 with a power commander
Jesus that sounds complicated!
Why is nothing simple?
yes, i am checking it today and will let you know how i get on. i have borrowed an Horiba Mexa analyser for the down pipe emissions (with 4 valves to
select each cylinder) and a Horiba AFR broadband scanner for the 4 into 1 part. I suspect the power commander but will check the Suzuki std set up and
the reconnect the power commander. ] if its not the power commander then its the injectors which i had checked last week by an injector specalist on
the UK mainland.
Originally posted by hobzy
Jesus that sounds complicated!
Why is nothing simple?
2004 r1 with a power commander
quote:
Originally posted by ruskino80
2004 r1 with a power commander
Got a CAT sorted and a couple of Maps. I'll let you know how I get on on Saturday.
No luck. 
Even leaned right out with the power commander (reluctant to lean it out any more than -31!) and the CAT in place and hot, couldn't get it down
below 1% CO consistently.
I don't have the skill or knowledge to do any of the stuff sglover has mentioned so I'm stuck. Passed everything else on the MOT except
emissions. Luckily hes not charging me for the trial runs.
Any ideas what to do next anyone? John is keen to help but he's a car man not a bike guy.
5PW R1
stick the probe up another car 
That's how it "possibly might have 
" got through for the last 4 years 
. Unfortunately that's not an option any more. 
How much difference would a tiny leak in the 4 to 1 manifold joint cause? Just found one but its right in the middle of where the 4 pipes meet - not
sure how to get some putty down there...
I'll do an oil change too and after a peruse of a few threads on here, I'll take the filter off and wrap the CAT to keep it hot.
As it's not a closed loop system (ECU reading fueling via lambda sensor to adjust fueling) an air leak won't alter the CO reading. though it
will effect the lambda reading on the gas meter.
How much difference are you seeing between the reading with a cold cat and when you've warmed it up? I'd suspect not a lot. It takes a lot
of constant high revs to get enough heat into the cat' to "light it up" and get the reaction. You're looking for 400'c ish
and an external cat with no heat shield will loose temp almost as quick as you can put it in. Wrap it and see how that helps.
Ta. Will give it a try.
Have you considered increasing the idle speed slightly. Most maps have extra fueling at the bottom of the table to discourage stalling. If you are a
bit slow then you might have run into the extra fueling and additional advance that you get down there.
Just a thought.
Matt
Yes tried that. Even tried leaning out the bottom of the map - started running on 2 cylinders so quickly changed the map!
How do you change the fuel pressure?
Does the R1 engine have reed plates on the cam cover?
If so, have you blocked them off?
If you have, unblock them as they draw air into the exhaust to burn off unburnt fuel, it made a massive difference on my zx12 emissions
A power commander cannot remap individual cylinders afaik so if you are having fueling isues on 2 cylinders it is time to check something else.
Clearly out of my depth now! I need to find a bike engine guy down here
Ta for the advice.
Mate, get it on a rolling road and a reasonable map rather then a 'guess it' map.
RE:Worx or JKM in Pompey both have RR's. I know them well at the former and they mapped my car, the latter have a good rep too.
Ian
It was mapped at holeshot for previous owner without the cat, how much is that going to cost me?!. This is getting daft. The damn cats coming straight off once its passed. Ran fine grrr.