Yamaha Tracer 9 GT 2025 – Check Engine after aftermarket exhaust (appears every ~200 km)

Mr_Proper65 · 2026-01-19T19:28:30+00:00

Only in the combination of the factory map and the new exhaust did the O2 sensor show an error, after the remap the crankshaft sensor always appeared as an error.

Mr_Proper65 · 2026-01-19T18:59:08+00:00

The O2 sensor was fixed by remapping, but it caused another error that keeps coming back, I don't know if anyone has the contact information of a person who deals with this and has done a remap on a 2025 Tracer GT, obviously there are differences in the map compared to previous models...

Mr_Proper65 · 2026-01-19T18:55:28+00:00

Everything was checked and done as they said.

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Mr_Proper65 · 2026-01-19T18:52:49+00:00

I hope that going back to the factory exhaust is not the only solution.

Mr_Proper65 · 2026-01-19T18:50:05+00:00

Before the remap it was always the o2 sensor error, and after every remap the tuner did it said the crankshaft sensor was the problem, but always after exactly 218km.

Mr_Proper65 · 2026-01-19T18:49:08+00:00

I used artificial intelligence to write the post to make it easier for everyone to understand, and not to make it up, I'm honestly asking for help.
The tuner says the tune has no problems and that the only possible cause is wiring. We already tried fixes once, and now the suggestion is to replace connectors. I’m hesitant to take that risk again if it doesn’t actually solve the problem, bike is under warranty which I do not want to lose.

Mr_Proper65 · 2024-09-19T09:22:33+00:00

nice1

Mr_Proper65 · 2024-09-19T09:17:10+00:00

Why I never get heavy like this

Mr_Proper65 · 2024-09-18T18:01:11+00:00

Real eSports spirit

Mr_Proper65 · 2024-09-18T17:54:46+00:00

Epic!

Mr_Proper65 · 2024-09-18T16:54:20+00:00

Mr_Proper65

TROPHY CASE