CO2 sensor override

Anyone know where I can get the gizmo that overrides the CO2 sensor

Have a look on Dyna Tune's website(not sure maybe).

Why do you want to over ride it?

Got some V&H cruizer comming. No CO2 fitting. I was going to override it and then fit a FI Tuner Pro. Or do I just need the FI Tuner?

You will need the override or else the FI light will stay on.

The part I think you need is an Oxygen sensor eliminater which you can get on www.dynojet.uk,

The Fuel processor will actually be the bit that eliminates the need for the Oxygen sensor but the warning light will show. Putting the O2 Sensor eliminators in will just turn the warning light off, no more & no less.
Forget the O2 sensor eliminators, all that does is loop the 2 wires around to each other to create a circuit
just cut wire #23 on the ECU!

Cheers for the info. Will let you know how I get on.

Which fuel processor are you using?

Oh I forgot to say if you do go the route recemended by Pledge, which to be fair most people do! Don't forget you need 2x CO2 sensor eliminators.

What a great knowledge base we have on this site, Pledge comes in with one solution & Mr I with another.

This is defo the place to be

The are two FI tuner pros from Bikers discount store, FIT S01 or FIT S02. Which would I need?

Dynojet UK say they do not do eliminators for a M800. They say that it is a disable and the instructions on how to disable are in with the power commander that they supply which is a lot more expensive that a FI Tuner Pro

Answered my own question FIT S01.!!

Glad you got it sorted.

Cheers Mr Intruder. Very helpful. Think I know my direction now.

Let you know how I get on. Might take a week or two.

With mine I had to have a boss welded to my pipes as DynoJet told the garage that they don't yet make an override for it.

Hi Stone I have the 2007 m50 and have V&H Cruisers fitted,you do not need a CO2 sensor override,these are not fitted to the pipes.I have got the Cobra Fi2000 Fuel Processor fitted also a K&N filter,try out the pipes first before you buy the processor unless you are going to improve the air quality/rate,(with a new K&N filter).A lot of people say do the 3 at once,but not everyone can afford to do this,or want to do this,just changing the pipes should not necitate a fuel processor but this a very emotive topic,this is only my opinion.I done mine in stages.Good luck on whatever you decide to do.nb: just to add both Mr Intuder and myself have quieted down the Cruisers,another reason to hold back until you are sure.

Put the Cruisers on today. Look great!! Started the bike up and both my kids 3 & 6 ran off crying and screaming. VERY LOUD!

Job done!! Sent back FI Tuner and K&Ns. Got a boss welded to V&Hs and fitted CO2 sensor. Much cheaper. Bike runs good, sounds good. Dec killers fitted. Need to stop spending now!!

Job sorted.

Now I really am getting confused on what years the changes were made with these bloody bikes

Hi Folks,

I'm confused about this fitted or not fitted C02 sensor debate?

My M800 is the same as Alfies M50. Mines a 2007 57 plate but it's a K6 (2006 model year) it has a C02 sensor hole on the pipe from the rear cylinder but not on the front pipe. A mate of mine has a 54 plate C800 that's carbs not FI and obviousley his has no sensor holes. I saw a 2010 C800 and a 2010 M800 last week and I think they had the C02 sensor holes on both pipes?

So it would appear you have to have a look at your own bike before deciding if you'll need bosses welding to after market pipes etc etc

PS.... I found that a 2007 Bandit 650 C02 sensor would replace the one that had been crossthreaded by the chimp that owned the bike before me. I might write up my findings re C02 sensors in a seperate thread? The short version is there are only 2-3 different types. So £12.50 for an as new Bandit one was slightly more appealing than £190 plus vat for a new one for an M800

Bloody hell, yeah I reckon that info should have a dedicated spot in the maintanance setion. Thats the sort of info that helps members no end

bloody hell! what a difference in price good job we have D.D on the case for us!

Ok Mate,

Well it would appear that aslong as the one your replacing has the same number of wires and is colour coded in the same way. It doesn't matter a toss how long the wires are. The only difference with the Bandit 650 item is the wires are approx 1/3rd longer because the route it takes from the downpipes to the ECU is approx 5" longer.

Where the sensor fits on the standard pipes V's where it fits on my HH Short cuts meant the wire on the original (crossthreaded) sensor had to be wrapped once around the bracket for the right hand side panel to take up the slack and with the Bandit replacement it had to be wrapped around just under twice. The C02 sensors on the Suzuki Van Van & the GZ125 are identical in every way to mine but I couldn't find either of those for sale? From what I can gather a C02 sensor is a bit like a tyre i.e. not made for a specific model or make. So aslong as it'll screw in at one end and has the correct connection at the other it'll probably work?

Don't take that as gospel but it isn't guess work either and if you can pick one up for what I paid your not investing a lot of cash to find out if it'll do the job.

Thanks lads but don't forget I'm talking about a brand new one in a nice plastic bag from a Suzuki dealer V's a used one from a wrecked 1200 mile old Bandit 650 via an online breaker!

Personaly I reckon the breaker option was the way to go but just thought I should point out that it wasn't brand new.

New or second hand, who cares. Its the fact that your research has found that alternatives are ok with the bike that matters, it opens up the search possabilities when someone is desperate

Hi all you wiring wizards   The new (second hand) V&H Straight shots came today and there's only one CO2 boss fitted to them, I'm guessing if I just cut this here "wire 23" thingy on the ECU? I'll be able to do away with the sensors and just plug the holes with a bolt on both sets of exhausts, and swap and change to my liking.

ps. it won't make my bike run crap or anything will it?
pps. is this wire 23 numbered or anything?

Cheers.

Good to go Sim.

Sim it is numbered

Cheers Crash  The bolts for blocking the holes off in the pipes are ordered  

If I recall there was a while when some of the M's only had one sensor so I would presume the pipes you bought have come of one of them originally, will be interesting to see how you like those after the pipes you are running now. I think they will be louder but not anywhere near as deep

Yeah! these have one sensor on the rear cylinder pipe, I like long pipes and just fancied trying something different for a while, I fancy some short ones too so I can alter them lol.

Are you sure it's only got "One" o2 sensor Mick? (which one have you found) You'll also need to check if it's got a "Wire 23" on the ECU? Not sure when Suzuki stopped putting them in after 2010?.

Your bike should have 2 CO2 sensors, can you check for us that your bike does have a wire going into port #23 because we are unsure of the year when the wiring changed happen. If you have a wire 23 on your year still then yes cutting it will be fine.

Thanks for the reply, only one sensor in the top exhaust that I can see, is the bottom one hidden somewhere as its not visible. I read that mine should have two so am a little confused! The ecu is under the right hand side panel as I understand so will drag the big heavy thing out of its lair and have a butchers at the ecu plug when I get chance, can't wait to get em on and annoy the locals! 

Try looking on the down pipe near the Brake pedal 

Err, found it where Simbo said, had a mooch at the ecu but can't see numbers on the ecu or plugs, which one is wire 23? there's a lot of the buggers in those 2 plugs! 

can't you just take the bulb out or is that too easy?

And why is the time wrong on the posts???

Not sure or not if my old video helps at all, sorry but I have been caught by a few nasty spirits tonight.



Enter your profile and change your time setting to uk

Thanks Dave, just had a peep at my plug and the wiring is different, its got two black and white wires so am going to boss the pipes up and keep the 02 sensors as I think the cowards way out is the right way out for me, scared of cocking the ecu up or blowing some electronic gadget that Mr Suzuki will make me remortgage my house to replace.  

Has anyone managed to figure out which wires to cut on the newer bikes?
I'm fitting the Cobra FI n K&N filter this wknd and would like to do away
with them. TY guys.

Sounds like the right way Mick as we were unsure from 2010 but now we know. leave alone for now, until we get an official Suzuki wiring diagram we are at a loss but you have really helped us by confirming the changes happened in 2011.

Waiting with bated breath.