Power Commander V unexpected behavior

rosenrot

Standard Bore
Joined
Sep 3, 2023
Messages
10
Ride
Street Twin 2016
Guys I see something I don't understand when using PCV+autotune in TPS tuning mode. The AFR table is set expect for low TPS and almost everything works as expected.

When I drive in 3rd gear, I approach a certain TPS/RPM field, the trims adapt as you can see in the screenshot.

For some reason, when I go in 1st or 2nd gear, and I go to a RPM of 5000+ with a TPS of 24+, the AFR shows around 17 and I can feel that there is no power coming from the engine.

What I would expect is that the PCV adopts the AFR accordingly but for some reason it seems not to do that.

Could someone tell me if I oversee something? I didn't accept any trims yet. The "5" you see there between TPS 24 and 60 I set manually to test.

This is a Triumph Street Twin buy the way, but shouldn't have an impact on my question.

 
Here you can see what I mean. 20s driving with an AFR of 17 and there is no injector adjustment made. Any idea?

 
I would erase all and start again keeping in mind the autotune is always adjusting to your target fuel. You need to except only steady throttle positions or smooth slow throttle increases. To do this, select an rpm range (example: 2000-4000 rpm), run through the selected range without reducing or hammering the throttle. Never let off the throttle within the select range. After two runs, erase all other rpm trim recommendations and save only trims for 2000-4000. Repeat this until you get trim value down to 2 or less, then select another rpm range and repeat. Once done, do not change saved fueling values, and keep autotune on to adjust out small fuel variations. OR get the Dynojet switch and set it up to turn autotune on and off. Doing this allows you to tune any rpm and throttle position at will. ADD the pod 200 and you can set it up to view many engine parameters live ( have mine set to view rpm, fuel ratio, throttle position, and water temp).
I would also change my target fuel value to 13.2. Dynojet recommends it as the safest value for hp/economy.
 
It would appear like the AFR target in that range in 1st and 2nd gear tables are set to 0 and it's not attempting to correct.
Or some other setting is off in there somewhere - starting from scratch again might be an idea.

Have you got the latest firmware installed on the PCV and AT modules?