Hi.
In the end of last season on my way to a track day I got a whining noise at high revs but did not investigate further. After maybe an hour on track the rear O2 sensor whent bad so I drove home carefully at low revs. The oil was at top mark on stick, maybe little over even and oil pressure ok all the time.
This winter I changed the O2 sensor and installed a baffle in the oil pan.
When starting up after a winter idle/service every thing seemed ok, after the engine was warm I started to rev and sadly the noise was still there. If I engage a gear and accelerate moderately I can hear that the whining start when VTEC engages and at 6.200 revs the sound is very distinct. The higher the rev the higher the volume of the whine.
The sound is the same no matter what gear used.
No engine codes.
I only tested to rev with the engine warm.
Oil level have been little over top marker all the time (I track a lot).
Air filter was a bit wet (15% of the area) from oil.
Have any of you had the same symptom?
What in the VTEC system might cause this sound?
Regards
Klas
In the end of last season on my way to a track day I got a whining noise at high revs but did not investigate further. After maybe an hour on track the rear O2 sensor whent bad so I drove home carefully at low revs. The oil was at top mark on stick, maybe little over even and oil pressure ok all the time.
This winter I changed the O2 sensor and installed a baffle in the oil pan.
When starting up after a winter idle/service every thing seemed ok, after the engine was warm I started to rev and sadly the noise was still there. If I engage a gear and accelerate moderately I can hear that the whining start when VTEC engages and at 6.200 revs the sound is very distinct. The higher the rev the higher the volume of the whine.
The sound is the same no matter what gear used.
No engine codes.
I only tested to rev with the engine warm.
Oil level have been little over top marker all the time (I track a lot).
Air filter was a bit wet (15% of the area) from oil.
Have any of you had the same symptom?
What in the VTEC system might cause this sound?
Regards
Klas