Ok Here's the scenario: My thruxton efi, which I thought was running fine, has BC Predator pipes, TTP air box inlet bellmouth and ? appropriate tune?, DNA air filter and the lamba sensors removed ( this had all been done by the guy I bought it off). I took it in for service and when I went back I was informed the bike was a mess, the engine management light was on, it wasn't when I left the bike and has never been since I had it, he said the lamba sensors should never be removed from an efi bike. the map was for the standard set up so they re-mapped it for the pipes, and said they couldn't get rid of the engine management light until the sensors were back in. The guy was very adamant about this and said he had only seen it on carbed bikes. It has sent me into a tailspin as I see these kits all over the place and now I have no idea what my bike is mapped for.....the exhausts? the exhausts and Air box. seemingly its not mapped for the ex-lambas. I'm not even sure what I'm asking here, he said the bike's alright to ride but won't run properly, do I need to replace the lambas, do I need to re-map for no lambas. He said there is no way an efi bike can run properly with them removed. Any help would be gratefully received, bearing in mind this is my first working bike in about 20 years and I'm a bit rusty on mechanics and useless on electrics. Ta muchly
Is this a Triumph dealer that's worked on the bike? Can the bikes history be researched in the dealers database/service records to see what mapping updates have been carried out?
May be worth booking yourself an appointment at a Triumph dealer to get it hooked up to the diagnostic equipment then. I had a couple of modern Guzzis and they were both fitted with lambda sensors and EFI and it was only by hooking up the electronic diagnostic kit each time it was serviced could the injectors be balanced, etc. If the previous owner carried out his own servicing did he buy the software and suchlike to carry out this part of the adjustment process? Do you have the sensors that were removed? If the garage that serviced the bike this time have the software to remap it could they not refit the sensors for you and sort the tune and warning light?
Yup I took it to a triumph dealer for a service and they re-tuned it to the appropriate map for the exhausts as they said it did not have the proper map on it. They say they cannot tune it properly without the sensors so it won't run properly! They say the sensors should never be removed on an efi bike, I find this difficult to understand as there are loads of sensor removal kits out there. This is why the engine management light is on, they implied it was on before I gave it to them which it wasn't. Surely someone on the forum must have an efi thruxton or bonnie
Damn hit wrong button! Surely there must be an efi bonnie or thruxton owner on here with sensors removed. Does your bike work? The reason for removing them is to get the bikes running smoothly at lower revs is it not? Thanks anyone
By Lamba sensors , are they also called air sensors in exhausts,? mine has had them removed, and air induction kit fitted. I took my 2009 Bonnie to a rolling road specialist (he sponsors amateur racers, good guy). Triumph told me sensors should not be removed. Specialist said he tunes for 13.6 to 1 for fuel air, knows the Triumph guy well but does not agree, and further said if ever you do have Triumph service yer bike instruct them not to remap as they sometimes do without telling customers if a new map is advised by Triumph. He also got me 15 more mpg! Using his computer he showed me how the power is delivered smoothly. A test first to see if anything needs changing is £25 and a printout is provided. After any work another printout shows the change. Well worth it to check wether my newly aquired bike was running efficiently. This guy is in Malton North Yorks but I would think you know of a Dynabike guy in your area. I was so impressed I had my carbed Harley tested and sorted. Different bike!
I think Crispey is referring to the O² sensors in the exhaust manifolds. It sounds like your bike was modified very similar to mine. I think the bike shop you took it to has checked the ECU to see if it has the most up-to-date TRIUMPH map and may well have fûcked up the previous map (most likely TTP) . The first thing I would like to say is that I have done many thousands of miles on my de-O² sensor bike and she runs beautifully. No problems whatever. I also removed the Air Injection (AI) system, installed a free flow air filter and long free-flowing pipes. She runs cooler than std. (so less blueing of the pipes). Basically the garage that did the work has, imo, fûcked up your bike but it is easy to put it right. If I were in your shoes I would be contacting Mike at Triumph Twin Power (TTP) and telling what has happened, giving him the name of the previous owner (so he can check his records to ensure that the re-map WAS purchased from him and which one it was) asking him, if he would be so kind, to supply me with another copy of the map. Also at the same time I would contact the previous owner and explain what has happened and ask him if he could e-mail you a copy of the re-map, if he still has one. So, imagining that you now have a copy of the re-map and assuming that the AI system O² sensors are fully removed, you just need to re-install the re-map. To do this you will need an OBD (OnBoard Diagnostic) cable - you can buy one from TTP for about £18 - and a copy of a free download called TuneECU. Install TuneECU and the drivers for the cable on your laptop. Connect both the laptop and the bike (via a battery charger) to the mains. Connect the laptop to the bike using the OBD cable. Then fire up TuneECU, take a copy of the map that is currently in the bikes ECU and save it on the computer. Now install the re-map, ensuring that both the AI and O² boxes are unclicked (tell the bike that these item are no longer in the bike so the EML will not be tripped on. Once the new map has been installed, disconnect the battery charger and start the bike DO NOT TOUCH THE THROTTLE !!!!! during this process. Allow the bike to tickover for approx 15 mins or until the green bar indicator in TuneECU says it is complete. Once that is done, exit Tune ECU, disconnect the OBD cable from the bike and the laptop and go for a ride on your bike - and ENJOY. So what will you have achieved? 1. You will have copies of the std. Triumph map and the re-map on your computor, should you ever need to use them again; 2. You will have re-mapped your bike to suit the configuration it currently runs; 3. You will have learned something new ! Cheers and the very best of luck to you. Personally I wouldn't use that garage again as they don't know what they are talking about. Dave
Yup that's the one O2 sensors, they did a re-map for the exhausts as they said I had the wrong one but according to the previous owner he had the ttp 3 map installed. I think I might have that, will have to do a bit of digging, if so I will give it a crack tomorrow. Thanks for your help guys. In the dealers defence I suppose he has to go strictly by triumph guidelines but it would have been nice to have been contacted concerning re-map before they did it.
I have 20325ttp3 purchased by previous owner in may 2013 also a obd but it says its a VAG one, that's vw audi if it fits will that work if I down load drivers from ttp site?? On another note I took her out today and I have to admit she seems to be running better than before, I only need 1 stop on the choke to start from cold and no choke when warm, before I had to use 1 stop when warm and 2 for cold, that would mean previous map was getting more air and this map more fuel, which would ring true to the shop saying she had standard map, wouldn't it?
Hi Crispey, you might find it interesting to know that these bikes don't have a 'choke' at all. The control you've been using increases the tickover speed and that's all. No change in a/f ratio.
Oh ok cheers, my tickover speed used to be around 900 now its over 1000 so that probably explains the 'choke' or rev increaser change
My Thruxton ticks over at just over 1000rpm. Speaking to a Triumph dealer today he was telling me that it was important not to touch the throttle before starting as it would alter the idle setting. Apparently the EFI compensates for any fuel injected by twisting the throttle before hitting the starter. I use position 2 on the fast idle from cold, position 1 when warm and ease it in from position 1 when on the move for about the first 1/2 mile.
Cheers creaky. mine used to be like that but now its 1 for cold and none for warm since the service and or re-map
