Hondata

HI guys i just recently purchased hondata for my 2020 civic si coupe and im having problems with my tuner. after i load the tune errors on my dash board including cel would pop out on my dash. i tried reflashing (if thats the right word) it will be gone and it would come back again after a while. i dont know what to do. i've been reading in some forums and i tried whatever they say still doesnt work hope someone can help me.

When you datalog, what are the errors reported?

i forgot ill check it later. i just put it back to stock. coz i tried reflashing it 3x and errors on my dash keeps poping out after a while lile the cel, brake system etc.

Unfortunately if there is a single error Honda will display a long list of warnings on the dash (Emissions, Stability, Brakes etc) but will not actually tell you what the error was. So if this happens again connect the FlashPro and read the error by datalogging.

ok will thanks. ill update you guys

i just got home and tried what you saidnindont really knoe how to read code by datslogging. :(

Install FlashProManager software
Connect the laptop to the FlashPro
Start the FlashProManager software
Switch on the ignition
Press F10 to start datalogging
Open the Error Codes window in FlashProManager

ok i will try im out of town right now. i keft the tuner in the house since im not using it

i just tuned my car again abd codes on my dash pops out again and i datalog it like what you guys daid and i have a p0172 code that says sysyem too rich (bank1). it doesnt show any of those that pops up in my dash.

What modifications do you have to the vehicle? What calibration are you using?

mishimoto intercooler, boomba bov, prl cobra intake.
calibration is: Civic-Si-Turbo-2020-1 Civic Si Turbo MT 2020, base calibration

boomba bov

Any BOV vents metered air and so makes the mixture very rich and there's your error code.

so you mean the bov is whats causing all the error codes like eps vsa hills start collision and etc? so should i remove the bov?

or what do you recommend for me to do so i can run tunes with having problem and error poping on my dash?
thanks

You should never use a BOV that vents to atmosphere on a vehicle with a AFM/MAF. Remove it.