Hondata

why is the k control on my ecu staying at 121%? i have attached a log and the calibration.

It is a 4 second datalog.

how long of a datalog do you need. i just did a short datalog to show its at 121%

It needs to show normal driving conditions.

here is a longer datalog. i messed up and deleted the datalog and started logging it again but its 7 mins long. You can hear the engine ping when accelerating. the hondata app shows it has knock counts but the knock control stays at 99 with zero knock retard. i concluded a screen shot of the mobile app.

i forgot to mention the ecu is not retarding timing when the ecu is detecting knock.

The datalog now is only 7 seconds.

The way Honda knock control works is that you can get knock retard without knock and knock without knock retard.

https://www.hondata.com/help/flashpro/k ... tables.htm

Hondata wrote: Mon Mar 28, 2022 1:51 pm The datalog now is only 7 seconds.

The way Honda knock control works is that you can get knock retard without knock and knock without knock retard.

https://www.hondata.com/help/flashpro/k ... tables.htm

My bad about the datalog time. first time ever using the flashpro to datalog. didnt have my tuning latop in the car. total drive time was about 45 mins. engine starts pinging after it warms up. the kcontrol always stays at 121%. You can hear the engine pinging and detonating. Marbles in a coffee can. Ill get you a longer datalog tonite.

i am a little bit confused. I logged the ecu with my laptop last night and the knock control started working. The log I posted yesterday the knock control was not working. Originally when I tuned the car I was running 93 octane fuel and I disabled the knock control after I started this thread. When the fuel prices went up to $4.50 a gallon for premium, I started pumping 87 octane and started getting spark knock. So I flashed the stock timing maps back on to the ecu with turning the knock control back on. I hasnt been working since I reflashed the ecu. You could still hear spark knock from the engine under hard acceleration and moble app was not reporting any changes to the kcontrol or knock retard but was showing the engine had high knock counts. App was reporting 2000 knock counts everytime the engine was restarted but slowly those knock counts started to reduce i.e 50-200. last night I logged the car and the ecu was pulling ign timing when it was detecting knock no more ping on hard acceleration. How long the ecu take to relearn the knock control when you reflash the ecu? I have attached the calibration and log files from last night.