All Dash lights over 100mph post tune

Post Reply
chicago2.0T
Posts: 3
Joined: Wed May 18, 2022 8:30 pm

All Dash lights over 100mph post tune

Post by chicago2.0T »

Hi! Need help with my 2021 accord 2.0T!!
Every time the car breaks 100mph I get the Xmas tree effect on the dashboard and have to shut the car on/off like 8x to clear all the codes. I was told this would happen once or twice after my custom tune, but it’s been a recurring problem. Any suggestions to solve this problem? 🙏 because I’d like to avoid pulling over on the highway to fix this after the car goes into “safe mode” 🤦‍♂️

Current mods: (all PRL) flex fuel kit, intercooler, intake, down pipe, front pipe, ktuner V1.2 with custom tune

Thank you!!!!
KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: All Dash lights over 100mph post tune

Post by KTuner »

Check the error code for some clarification. That's what the check engine light indicates is present.
chicago2.0T
Posts: 3
Joined: Wed May 18, 2022 8:30 pm

Re: All Dash lights over 100mph post tune

Post by chicago2.0T »

The codes that came up today (again after going past 100mph) were P003A: HO2S B1 S2 Heater Circuit Malfunction, turbocharger boost control “A” position exceeded learning limit.
P0128: Coolant thermostat (coolant temp below thermostat regulating temperature).
Any ideas on where to go from here?
KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: All Dash lights over 100mph post tune

Post by KTuner »

Your description doesn't appear correct for the first one, which has nothing to do with the O2 heater circuit.
P003A Code: Turbocharger/Supercharger Boost Control “A” Position Exceeded Learning Limit
The code descriptions tell you where to start looking. Consult a mechanic if you're unsure where to begin.
chicago2.0T
Posts: 3
Joined: Wed May 18, 2022 8:30 pm

Re: All Dash lights over 100mph post tune

Post by chicago2.0T »

Ok thanks for the help.
KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: All Dash lights over 100mph post tune

Post by KTuner »

Hope you get it figured!
Post Reply

Return to “18+ Accord Specific”