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I could be wrong but I don’t think we are having the same issue. My open loop map is not auto tuned. Furthermore, I don’t believe (but again could be wrong) auto tune makes any on the fly fueling corrections. It only gather suggested trims needed to accomplish the target AFR. The map has to be...

I am having a horrible fuel cut / AFR spike issue on gentle throttle off - throttle movements that I am in desperate need of help with. The bike is a 2017 model with the following mods: PCV rev xtend to 11,200 rev limit auto tune active on closed loop section (0%-60%, 0-7,500 rpm) - 13.5...

Yes, I had to grind the corner of the flange to create enough clearance for the O2 sensor to not hit. the O2 sensor did not hit the stud itself though. Matt, this is on the header you just sent me. Maybe the jig is off a bit?

The 0% idle cell trim values in Tom’s base map had the bike at like 18:1. It was also the cause of my check engine light. I completely cleared the 0% column and the bike is idling at ~13.5:1, which works for me. And the check engine light has stayed off. I may try swapping back to the bazazz O2...

Definitely get the WB2 from hard racing. My bike isn’t even properly tuned yet and it already runs significantly better than it did without it. I think the PCV+WB2 would improve even a bone stock bike

Totally fair answer. I can’t imagine any commercial product designed for this application not working as we know a $0.10 resistor does the job. It’s a simple deal. Ride on!

Tom, Have you tried running the PCV/WB2 with no target AFR values in the closed loop section? I’m trying to figure out if the stock ECU will adjust enough to get to the pre-programmed AFR that hard racing puts into the WB2. Or is the injector just so big that the stock ECU can’t trim...

Why not just leave the vent valve solenoid attached? It’s not all that much bigger/heavier than the dongle and it’s free....

I’m using the same large injector you are from gray area KTM so I was surprised it was idling so lean

Another update: I solved my check engine light by messing with the idle cell values in the fuel table. I noticed that the bike was running exceptionally lean at idle and was throwing a P0130 code as a result. I think it was all just way out of range and the corrections in the fuel table were...

Bummer. Thanks

Hey Chad, Is that 20133 map for the 15/16 bikes, or the 17+ bikes? Is there a similar map that offers less closed loop for the 17+ bikes?

I too am still having trouble wrapping my head around the conflicting information regarding whether the closed loop AFR is set by hard racing, or whether the target AFR auto tune table in the PCV software is actually taken into consideration. If the AFR is set by hard racing AND there are...

For what it's worth I found a slick place to safety wire the stock O2 sensor. Ditch the horn (mine is a track bike only) and safety wire it to the old horn bracket under the left side faring. It's visible if you look down there, but its truly away from anything, including the frame. I can...

So, another update. I swapped back to the stock O2 sensor/zip tie setup. I still have the check engine light. So either I messed something up (which I doubt), or it takes a while for the ECU to clear the check engine light, or my check engine light is strangely coincidental and unrelated (I...

I just buttoned up my install today. I used the O2 stabilizer. I DO have a check engine light. I am going to disassemble again and try the stock O2 sensor. I am also still confused about the target AFR in the closed loop cells. I'd love to hear some input from others on this.

Hate to break it, but I know of several 390's that have you seriously beat. That being said, very nice bike.

Would love to see a photo of these on the bike! The stock axle blocks are really bad.

My impression was that the lower value cells were to be left blank because the stock ECU would fight any value placed in the closed loop section of the map. Are the values in your table just autotune values that have been committed to the PCV map? Side question, have you used the POD to...

Tom, I will be getting my bike set up in the next few weeks. i greatly appreciate you sharing your auto-tuned map. I'm wondering if you can shed some light on the cells under 80% throttle. In the hard racing thread it seems that everyone has left the 0-60% cells blank, only filling in the...