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SwedishCheck engine light 3A after flash
zzy7164@hotmail.com
Posts: 3Verified User
in EX 400
Hi:
I have a 2020 Ninja 400 with a full Akrapovic exhaust system and the ABS removed. The ECU number is 21175-1332.
Initially, I used the unrestricted 2020rev 1332 ECU map for my first time flashing, and it worked well without any check engine light. However, I noticed that when I decelerated between 5000-6000 RPM, the motorcycle started popping and backfiring. I have a road test coming up so I decided to switch back to the stock map. After flashing the stock map from the public file section in Flash Tune, I received a check engine light with code 3A.
I am wondering if anyone has encountered the same problem and knows how to fix it.
Also, does anyone knows how to deal with crazy popping and backfiring?
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Comments
Just correct some info. I got crazy popping and afterfire (shoot blue flame) when I roll off the throttle
Hello
You may need a custom map from a good dyno tuner. We do have an updated map for that ECU I believe in the tuning suite that you could try. The decel popping is cause from the air injection system when not blocked off.
@mike@ftecu.com
Could you tell me the map's name? I also import the power command V's full ak system fuel map to see if it can reduce the blue flame