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Old 08-07-2013, 01:01 PM   #1
winglik
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Default Where is the camshaft position sensor?

Car is giving out the error code for camshaft position sensor. Where is that located? I want to check it out myself before i make the trip to the dealership. Thanks

Error Code is P0019
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Last edited by winglik; 08-08-2013 at 09:19 AM.
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Old 08-07-2013, 01:15 PM   #2
foghelmut
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Did you just change your oil?
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Old 08-07-2013, 01:45 PM   #3
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There are four camshaft position sensors because of the boxer design:
  1. Left intake camshaft position sensor
  2. Left exhaust camshaft position sensor
  3. Right intake camshaft position sensor
  4. Right exhaust camshaft position sensor

All four are on the front of the engine, two on the left and two on the right. I believe the top sensors are the intake position sensors, and the bottom sensors are the exhaust position sensors, but don't quote me on that.

If you look at the four red caps on the front of this (non-Subaru) boxer engine, it will give you an idea of where to look:


Last edited by sgoldste01; 08-07-2013 at 07:26 PM.
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Old 08-07-2013, 02:36 PM   #4
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Quote:
Originally Posted by foghelmut View Post
Did you just change your oil?
No, actually my next oil change at 15000 miles is almost due. Does this have to do with oil change? All my oil changes were done at the dealerships.
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Old 08-07-2013, 02:47 PM   #5
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Quote:
Originally Posted by winglik View Post
Does this have to do with oil change?
Not to my knowledge. I'm not sure why Foghelmut asked this question. I can't imagine why an oil change would cause this error code.
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Old 08-07-2013, 04:35 PM   #6
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Quote:
Originally Posted by sgoldste01 View Post
Not to my knowledge. I'm not sure why Foghelmut asked this question. I can't imagine why an oil change would cause this error code.
Thanks sgoldste01. I'll go check those plugs first before I send my car in for service.
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Old 08-07-2013, 04:38 PM   #7
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Oh, when I had changed my oil, I got a camshaft related code. P000b "slow response" I think. The sensors have to do with the variable valve timing and are oil powered. If you're engine oil is dirty, or wrong, or missing, or not flowing, the camshaft might not get into position as quickly as expected.

It happened right after I started my car after changing the oil. I don't know if it was just not enough oil in the right places after being drained, or what. But I checked everything twice after that, and all seemed normal.
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Old 08-07-2013, 04:52 PM   #8
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Quote:
Originally Posted by foghelmut View Post
Oh, when I had changed my oil, I got a camshaft related code. P000b "slow response" I think. The sensors have to do with the variable valve timing and are oil powered. If you're engine oil is dirty, or wrong, or missing, or not flowing, the camshaft might not get into position as quickly as expected.

It happened right after I started my car after changing the oil. I don't know if it was just not enough oil in the right places after being drained, or what. But I checked everything twice after that, and all seemed normal.
I see. I will check the oil level as well. Thanks
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Old 08-07-2013, 08:08 PM   #9
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Also found this PDF, so don't listen to what I said before and take it in.

Service bulletin NUMBER: 02-132-12

http://www.ft86club.com/forums/attac...0&d=1352490977
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Old 08-07-2013, 08:46 PM   #10
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Quote:
Originally Posted by foghelmut View Post
Also found this PDF, so don't listen to what I said before and take it in.

Service bulletin NUMBER: 02-132-12

http://www.ft86club.com/forums/attac...0&d=1352490977
Interesting find. However, the OP has a 2013 Impreza, and the service bulletin is for 2012 Imprezas.
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Old 08-08-2013, 08:28 AM   #11
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Would not the ultimate irony be that my car just dropped that code again? P000b Camshaft Position Slow Response.

FWIW, I am running Pennzoil Platinum 0w-20. Oil level is fine. This first happened about 2000 miles ago. Oddly, it came on at the same intersection in the same spot - starting from a slight hill. This hasn't happened on any other hill, so who knows.

I called the dealer, and they can't see me until Tuesday, but they said it would not damage my car to continue driving it until then.
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Old 08-08-2013, 08:30 AM   #12
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Foghelmut, how many miles do you have on your car? Since it's a 2012, that tech bulletin just might apply to your situation.
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Old 08-08-2013, 08:39 AM   #13
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Quote:
Originally Posted by sgoldste01 View Post
Foghelmut, how many miles do you have on your car? Since it's a 2012, that tech bulletin just might apply to your situation.
25,400 ish.
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Old 08-08-2013, 09:11 AM   #14
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Checked those connections and my oil yesterday, it was at normal level and nothing was loose. The only thing that I can think of being oil change relative is that they didn't put the black filter or my oil needs to change. They put on a blue filter which is for the Forester, but car runs smooth, i didn't bother to call them to verify why the black one wasn't use. Maybe that has to do with the code. Anyway, I'll go in and have an oil change next week, and i'll make sure they put on the correct one.

Last edited by winglik; 08-08-2013 at 09:23 AM.
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Old 08-08-2013, 09:20 AM   #15
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The black (Roki) filter is being discontinued. Subaru dealerships now default to the blue (Honeywell) filter.

While it's true that many people feel the black Roki filter is a better filter, I'm sure the blue filter is perfectly fine as long as you don't extend your Oil Change Interval (OCI) beyond what Subaru recommends.

Therefore, your blue filter is fine, is the correct filter for your car according to Subaru, and is likely what you will get on your next oil change.

When I heard that Subaru was discontinuing the Roki filter, I bought a batch of six and will work my way through them over the next 40k miles. After that, I will likely switch to the FRAM Ultra XG7317 filter, which is such an excellent filter that even people who despise FRAM agree that it's really good.

http://www.bobistheoilguy.com/forums...Number=2695752
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Old 08-08-2013, 09:57 AM   #16
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I also have the blue filter. I bought the same model that the dealership had put on.
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Old 08-08-2013, 12:13 PM   #17
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I got this from another forum

Quote:
Looks to be the same TSB for the cam positioning sensor on the FA20 in the BRZ, in which case it just goes into a semi-limp mode. I know it's a super-common issue on the BRZ/FRS and yes, you are fine to drive around on it.

The ECU update that corrects the problem adjusts how the cam position sensors are polled. Back when they didn't know what the root cause was, they were ripping out cam gear assemblies and replacing them as a correction.
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Old 08-13-2013, 02:04 PM   #18
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So I got a call from the dealer, they're having me bring my car back next week so they can take the cams out and measure them. They're saying could be up to 2 days for a diagnosis, but they will be giving me a loaner vehicle.
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Old 08-13-2013, 02:27 PM   #19
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I'll bring my car in this Thursday to fix that issue. Hopefully they won't take too long because my dealership have no loan car. Thank god I have my old car for backup.
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Old 08-20-2013, 08:49 AM   #20
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I went to the dealer to drop off my car today, and ended up not doing that. I've put about 800 miles on it since the light first came on. The light has not returned.

Speaking with the service manager and a tech, the error code basically means that the camshaft sprocket is not in the position where the sensor expects it to be. This could be due to a number of reasons - software glitch, bad sensor, bad camshaft sprocket. In the case of a bad sensor or bad sprocket, the code would continue to appear. Especially with a bad sprocket, there would be a noticeable lack of power and the engine would be running poorly. In my case, I had none of these additional symptoms.

They recommended not opening the engine unless it's really necessary, which I somewhat agree with, whether or not they were trying to get out of doing work. They also said that no damage could occur to the engine from this. And most importantly, they said I would still be covered under warranty if I chose not to have the work done at this time.

So I took my car and went to work. If it comes back, they're opening that thing up.
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Old 09-04-2013, 08:41 AM   #21
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After going back to the dealer several time, they finally fixed the error code P0019. It has nothing to do with the camshaft sensor. The dealership had to contact Subaru to get this fixed. They first updated the ECU and it didn't work. Ended up they had to replace the ECM PN#22765AE761. Part cost is $620. Thank god it was all under warranty and I got free oil change due to their delay.
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Old 09-05-2018, 03:17 PM   #22
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Quote:
Originally Posted by winglik View Post
After going back to the dealer several time, they finally fixed the error code P0019. It has nothing to do with the camshaft sensor. The dealership had to contact Subaru to get this fixed. They first updated the ECU and it didn't work. Ended up they had to replace the ECM PN#22765AE761. Part cost is $620. Thank god it was all under warranty and I got free oil change due to their delay.
OP, did they fix this under powertrain warranty? I have the exact same code (P0019) and the dealer told me its the camshaft position bank2 sensorB, first they told me to try changing the oil which I did and they reset the code now it came back on.
and now I'm trying to locate this sensor, do you know where exactly this sensor is? I want to try to take it out and clean it.
If anyone could help, I would really appreciate it.
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