Got a appointment with Steve Jordan mototrcycles this afternoon to run on his dyno to get a custom map will let you know later how I get on cant wait been told the difference is chalk and cheese !!!!!!!!!
Well the bike feels better and the staff at Steve Jordan's were very helpful but still having problems with closing opening the throttle I will be speaking with Steve Jordan on Tuesday but in the mean time I want to get in touch with forum member called Arthur who seems to sort most members issues out please get in touch
Done When did it last have plugs, air filter? As you say and in my PM, call them back and ask to rerun on dyno looking at problem area, is the closed loop active? O2 eliminator fitted? Daft questions but often overlooked by many..
Hi plugs will be my next stop as the bike has now done 16,000 miles and when I changed the air filter 500 miles ago it was filthy could you explain the closed loop and the fitting of an O2 eliminator is it something a non mechanic could /check its been done as getting back to Steve Jordan's might be a while as I'm busy at work
You need to locate the lambda sensor wire, look for the sensor in the exhaust it should be unplugged the wire that goes to the bike should have a blanking plug fitted, that plug has a resistor fitted to it that stops an error code flagging up on the dash, the resistor is actually across the heater wires in the sensor and its this that tricks the ECU into thinking the sensor is still plugged in, some people think it's the resistor that gives a fixed value to the ECU but not true. I should add if its not fitted the values from the sensor will change all the time from 1500 - 3500 RPM range thus effecting the fuelling in that zone (closed loop zone, emissions testing zone) the PCV will not be in full control of the AFR.
Thanks will keep you posted just watched honda best yamaha in moto GP awesome now some family time hopefully start tinkering next week
Well just popped out to my garage looks like the wire that goes to the exhaust is still plugged in and no O2 eliminator so will be calling dynojet fitting that then unplugging the wire hopefully that will cure my problem
Yup thought so! That's why it's the way it is. You'd have thought Steve Jordan's would have checked it! The bike can not be mapped in the closed loop zone with out one.
I will be calling Steve Jordan's tomorrow bit disappointed that the guy who ran the bike on the dyno didn't check as I did speak to the receptionist and asked her to pass the message on about the bike not running right
Just stated to look at the wire connected to the exhaust does it go from the exhaust and then goes up towards the rear seat and when I do disconnect it what does everybody do with the now redundant wire ?
My hangs slightly down the left side of the frame in case I ever want to get at it in the future, next to my trickle charger lead
heres a good vid explainind what a resister does to the ecu VFR800 O2 sensor eliminator behaviour and O2 sensor test - YouTube
i fitted a 330 ohm resistor 2day and it worked perfectly, fit it between the white/black and the white wires
They are much more complex than most people know! Oxygen sensor - Wikipedia, the free encyclopedia Also a HUGE difference in a narrow 3 or 2 wire sensor and a wide band sensor like what's used in Autotune. http://www.lambdapower.co.uk/TechNotes/Tech-8.asp
