Hondata

Hi,

Need some advise if possible, How come during WOT, my AF CMD is 11.08 but the sensor is A/F of 10.52?

Is it the stock 02 sensor not accurate as its not wideband? Or need adjust some settings? Here a screenshot. Any expert opinion would be useful. Thank you

This is the latest datalog with the fuel trims adjusted much closer to zero. Knock Control at lowest 54% and 0 knock count. However still getting the rich AFR spikes " Time stamp 38s , 1m52s, 9m25s" under same conditions.

Gas pedal off
Gentle braking
Car under Deacceleration

Hope to see more ...

Do you have an aftermarket intake?


I am using a 27 Won Intake & exhaust is all stock. However i am still in the process of calibrating the AFM to enable the fuel trims to be as close to zero as possible by making small adjustments each time.

Also to side track a bit, i did not enable the "USE ...

Spunkster wrote: Mon Jul 20, 2020 11:10 am What time stamp in the datalog are you seeing this issue?

Hi,

Thank you for the response, Example of the time stamp are as follows:

10m03s
10m36s
10m47s
11m55s

During this time, the gas pedal is off, brakes gently applied and the car is in deacceleration.

Hi,

I am using 1.5t CVT with the hondata +6 basemap. Notice my fuel trims always take a dip to lower than 11.0 briefly when coming to a stop. Also the ECU goes into open loop for that few seconds. Not sure what is the cause of it. Does anyone have the same experience?

Attached is a datalog sample ...