- Thu Sep 03, 2020 8:55 am
#92684
Yes, on a lot of modern bikes the EFI has a long term trim ie it adapts over time. it will always try to pull back the mixture to stoichmetric, which gives theoretical complete combustion is is too lean for optimum power and smooth running. These days though most manufacturers have pretty well solved the issues of hesitation off idle, something car makers did ages ago. Euro IV bikes were supposed to have full OBD2 ports by now, so that fault codes etc can be read by any OBD2 compliant reader. However, according to a recent article in Bike Magazine, bike makers have not been able to solve the issue of a "fault" showing because the ECU detects a "misfire". It seems that bikes have too much vibration and are subject more to road shocks than cars, triggering apparent faults as though the engine is misfiring. So the legal requirement to have OBD2 ports and do away with proprietary ones so that anyone can fault read has been put back. Shame. My Triumph has what I thought is an OBD2 port. It is, in than the cable fits and works fine with TuneEcu, but apparently it's not fully OBD2 compliant, presumable lacking the misfire detection fault triggering element. Meanwhile, back in India, they've just discovered that poor wiring and cheap sensors affect EFI.....
