Got a CEL, car has about 170k
#1
Got a CEL, car has about 170k - Code P2647?
I don't have a code reader now but I just got a CEL. My car has about 170,000 miles with spark plugs changed at 100k. Car is kinda sluggish, but nothing really drastic. Could it be the O2 sensor? I know details are limited...I'll post again later when I get home.
Last edited by Oofie; 06-22-2010 at 01:14 PM.
#3
Lol, thanks. Oddly enough, i just got gas this morning and it was still on. However, it went away after starting the car again after stopping for coffee.
Anyway does anyone know if I should replace the o2 sensors at 170k?
Anyway does anyone know if I should replace the o2 sensors at 170k?
#6
If you see that CEL again then start suspecting. I nursed an O2 in my Cadillac for quite a while. It would occasionally trip the light on an up-hill acceleration on a cold start. On the Cadillac you can clear codes right off the dash, so that's what I would do and all would be fine.
The OBDII will set a code at a fault and the CEL will light when it's associated with the emission systems. If it's a temporary fault it will clear itself [CEL off] after three clean starts I believe, but the code remains in history for an extended number of clean starts and then it clears.
Gas cap issues [emission related] correct themselves soon after the cap is secured and do not seem to take three clean starts.
The OBDII will set a code at a fault and the CEL will light when it's associated with the emission systems. If it's a temporary fault it will clear itself [CEL off] after three clean starts I believe, but the code remains in history for an extended number of clean starts and then it clears.
Gas cap issues [emission related] correct themselves soon after the cap is secured and do not seem to take three clean starts.
#7
OK, had my mechanic neighbor check it with his code reader. It showed P2647 - "Rocker arm actuator stuck on Bank 1". He said it's the first time he saw that code. he cleared it and advised me to just drive the car and see if it comes on, then we'll check the codes again. I think his reader was a Nova?
Anyone got this code before?
EDIT: Just searched around and code P2647 for Honda is "VTEC Oil Pressure Switch Circuit High Voltage". Anyone know what this is?
Anyone got this code before?
EDIT: Just searched around and code P2647 for Honda is "VTEC Oil Pressure Switch Circuit High Voltage". Anyone know what this is?
Last edited by Oofie; 06-22-2010 at 01:14 PM.
#8
OK, had my mechanic neighbor check it with his code reader. It showed P2647 - "Rocker arm actuator stuck on Bank 1". He said it's the first time he saw that code. he cleared it and advised me to just drive the car and see if it comes on, then we'll check the codes again. I think his reader was a Nova?
Anyone got this code before?
EDIT: Just searched around and code P2647 for Honda is "VTEC Oil Pressure Switch Circuit High Voltage". Anyone know what this is?
Anyone got this code before?
EDIT: Just searched around and code P2647 for Honda is "VTEC Oil Pressure Switch Circuit High Voltage". Anyone know what this is?
A bit dated and a different Code, however, I think this basic explaination hits it: How Honda's VTEC System Works
#9
Thanks a lot K_C! Oil level is about 3/10 or 4/10 between the two dots, so it may be good. I'll just drive the car around and see if the CEL comes on again, then it probably is a bad switch. Good thing is, it's a lot cheaper than an o2 sensor.
#13
Not that I know of. If I'm losing oil, probably just a little bit. It doesn't go below the 1st dot/hole on the dipstick for sure. I'll probably just put some in just to be sure, thanks again!
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