Hi all, I've taken the DC5 to the track and I'm having an odd problem losing power.
On my first track day in November I realized I was very low on power and diagnosed that the VTC wasn't working so replaced it and once again had the power I'm used to. I also replaced both the VTC and VTEC filters because the rubber was old rather than being dirty. I went to the track again this past Saturday and again on Thursday and after just 2-3 laps I would again suddenly lose power. At first I thought it was intake temps (66+C) so I removed the hood and monitored the temps but it happened again. Allowing the car to cool down by running a slow lap would bring the power back and give me another 2-3 fast laps before needing to cool down again. During this power loss VTEC always engaged despite not being able to accelerate. On Thursday I noticed something else, VTEC went on/off when accelerating out of corners around 6000rpm.
This got me thinking the oil could be overheating but the water temp was fine and the fan is working. Maybe the VTC solenoid is leaking? I changed the oil and filter after replacing the VTC using Castrol Magnatec 10w-40.
My only DTC code is for the secondary o2 sensor but this has never affected power before nor should it.
Anyone experienced this?
On my first track day in November I realized I was very low on power and diagnosed that the VTC wasn't working so replaced it and once again had the power I'm used to. I also replaced both the VTC and VTEC filters because the rubber was old rather than being dirty. I went to the track again this past Saturday and again on Thursday and after just 2-3 laps I would again suddenly lose power. At first I thought it was intake temps (66+C) so I removed the hood and monitored the temps but it happened again. Allowing the car to cool down by running a slow lap would bring the power back and give me another 2-3 fast laps before needing to cool down again. During this power loss VTEC always engaged despite not being able to accelerate. On Thursday I noticed something else, VTEC went on/off when accelerating out of corners around 6000rpm.
This got me thinking the oil could be overheating but the water temp was fine and the fan is working. Maybe the VTC solenoid is leaking? I changed the oil and filter after replacing the VTC using Castrol Magnatec 10w-40.
My only DTC code is for the secondary o2 sensor but this has never affected power before nor should it.
Anyone experienced this?
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