10th Gen Accord Very Odd Behavior After Flash

FlashPro questions & answers specific to the 2008+ Accord, Americas and international
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Philth
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Joined: Fri Feb 03, 2023 7:40 pm

10th Gen Accord Very Odd Behavior After Flash

Post by Philth »

The FlashPro software is up to date.

The software says to turn off the ignition after I upload a tune. I do that. Nothing else prompts me to turn the car on. I start it and every error possible, to include check engine light is on. It's not the normal drive a few blocks and everything resets. The only way I can get this to turn to normal is to cycle the engine off and on SEVERAL times. Slowly, the errors disappear. Eventually, only the MIL remains on by itself. One last engine ON/OFF/ON cycle and the MIL turns off. Very odd behavior.

One time I flashed the car, it was almost undriveable. Engine wanted to stall and throttle was unresponsive. Had to flash again.

This cannot be normal. FWIW, I have a 2019 Accord 2.0 10AT w/CARB FlashPro
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Hondata
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Re: 10th Gen Accord Very Odd Behavior After Flash

Post by Hondata »

It is best to switch off the ignition as soon as FlashProManager tells you to do so. That way you should not get sub system errors.

You can always clear the errors using OBDII Diagnostics, otherwise they will clear after a few driving cycles.
Hondata
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