939 Rough running, wont rev/accelerate

gatdammit · Oct 18, 2021

You can attempt to "clean" the O2s. Basically soak in solvent and a torch. I tried it but did nothing. Eventually replaced with a good used set. Noticed nothing. Every time I suspected O2s, it was not.

boredus · Oct 22, 2021

gatdammit said:
You can attempt to "clean" the O2s. Basically soak in solvent and a torch. I tried it but did nothing. Eventually replaced with a good used set. Noticed nothing. Every time I suspected O2s, it was not.

This is where I am at. I replaced the O2 sensors with a cheap Chinese set off Aliexpress. Been back and tested the old O2 sensors with a blow torch, definitely producing voltage with heat applied etc.
At the moment I cant rule out the RB config /wiring so I have ordered a blanking plug that allows me to remove the RB unit and basically the wiring just passes back through to the Ducati ECU.

I cant ride the bike at the moment as I've taken the front headlight cowl and handlebars off to replace the bars and hand guards/LED turn signals.

gatdammit · Oct 23, 2021

Good luck. I have the RB blanker plug and it never solved any of my issues. Bike always ran exactly the same when I used, which leads me to question if the Evo is even working. It definitely has some functionality as it gets all readings to the software and manipulates the QS.

939 Rough running, wont rev/accelerate

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