Reduced power on shift

[KFactor]

Hi there,

Having some issues with a calibration. Please see below.

- serial number of your FlashPro: 170604
- FlashPro Manager version: 4.1.6.0
- the calibration:

20231012 Flex +Torque.fpcal

(Please take a look and tell me if anything looks wrong)
- a datalog of a problem:

20231012A.fpdl

20231012 New Tune 1st Pull.fpdl

20231012 New Tune 2nd Pull.fpdl

- what sort of vehicle you have: Accord 2.0T (2018+) US
- what sort of ECU you are using: Factory ECU
- anything about the car which has been modified from stock which may affect the ECU: Flex-Fuel Kit (SiriMoto), PRL HVI, PRL Intercooler, PRL exhaust (2nd O2 Sensor Removed), PRL Front Pipe, DC Sports Exhaust, Deleted Intercooler Resonator.
- a specific description of the problem: Below.

Issues:
1. Feels like power is reduced at higher rpms.

2. When the car shifts, it feels like it's hesitating.

3. Knock. Not sure what caused it, but I see something other than 0 in kcount.

4. I checked the "Use AFM to determine WOT" box for the first time today. Should I have done that?

5. I modified torque limit tables on this calibration for a little smoother driving (and took a stab at fixing reduced power), but it does the same things with the base flex calibration. To be completely honest, I don't really know what I'm doing so I was conservative with my adjustments.

Note: Timing changes (TC.R) in 1st and 2nd gear are traction control, but TC.R shows 0 for both 3rd and 4th gear.

I'm more than open to any feedback or suggestions.

Thank you!

-Ryan

[CalibratEd]

Ryan,

I will preface this with I am still learning about this platform. Below are my finding after reviewing the logs.

1. Traction control system is reducing the timing like you stated in 1st and 2nd gear.

2. Timing is being pulled due to knock.

3. Timing is being pulled due to high engine coolant temperature. The temperature of the car reached 200F.

- Ed

[KFactor]

Thank you for the reply, I appreciate that you actually took a look. I checked the temps in the longer datalog and it looks like the temp only rose for a short period after a WOT pull then went back down, which is understandable and also I believe there were some recent changes to the fan control parameters for flex fuel tunes to ensure the fan doesn't run constantly. TC pulling timing shouldn't be a problem, not sure why I even mentioned it. I did some more reading, and came to the understanding that the occasional knock on an individual cylinder shouldn't be cause for concern.

I think I'm going to flash the car again later today and use the flex fuel calibration provided with the most recent version of FlashPro Manager (which is what I used as a starting point for the previous calibration). The only thing I will change is to uncheck the 2nd o2 sensor under closed loop. I'll do two more pulls but allow a few minutes for the car to cool down between pulls. Once I'm done I'll post the calibration and unaltered datalog to see if there's still knock, high temp, abnormal timing, etc.

[KFactor]

I decided not to start over and instead use the same calibration, but uncheck "Use AFM to Determine WOT" I made a few pulls with this.

I think it looks better than the last one, but maybe someone who knows more than I do can take a look.

20231018#2.fpdl

20231018#4.fpdl

20231018#5.fpdl

20231018#6.fpdl

20231018#7.fpdl

[KFactor]

Here's the calibration.

20231012 Flex +Torque No AFM-WOT.fpcal