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Old 12-25-2008, 10:44 PM   #1
Danny Boy
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Default P0341 - camshaft position sensor trouble HELP!

Some background first:
I recently (3 months ago I think) put in Delta 2000 cams along with some other mild N/A mods into my '99 RS (EJ25 SOHC).

I got the P0341 CEL today and the car runs and idles, but does so a little choppy. I pulled the camshaft position sensor and it had some crap on it, so I cleaned it real good with some nail polish remover. After resetting the ECU and reinstalling the cleaned sensor, the RS ran very smoothly for about 3 minutes and then reverted to running choppy and the P0341 came right back on.

I'm going to replace the sensor tomorrow and see if that helps. My only concern is that maybe I jumped a tooth on the timing belt.

Does anyone have any ideas or experience with this CEL?
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Old 12-26-2008, 08:53 AM   #2
Danny Boy
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i just replaced the cam sensor with a duralast OEM equivalant from autozone and the car ran good for like 5 minutes then started running choppy. After shutting the motor off and restarting, the CEL P0341 came back on. WTF.

Anyone have any ideas??
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Old 12-26-2008, 07:04 PM   #3
Danny Boy
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bumps
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Old 12-28-2008, 08:28 AM   #4
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ask in the na forum and/or the built motor forum
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Old 12-29-2008, 01:53 PM   #5
yarrgh
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check the wiring.
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Old 12-29-2008, 02:11 PM   #6
Danny Boy
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I just finished another project opening up the garage, so I'm pulling the RS in and checking it out this week.

Things to check:
1. All wiring to sensor
2. timing to make sure I didn't jump a tooth
3. wires, spark plugs, and coil pack
4. Anything else??
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Old 12-30-2008, 07:15 PM   #7
Danny Boy
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I pulled the timing cover and I think it did skip a tooth or two. I took some pictures and thought I'd throw them up here while I warm up and look for my timing belt tensioner pin (to lock the tensioner out of the way).

Any comments or suggestions?

timing belt:


Driver's side cam:


Passenger side cam:


Crank:
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Old 12-30-2008, 08:14 PM   #8
96GreenLX
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Are you thinking the crankshaft sprocket isn't at TDC? Mine looks the same right now as I'm trying to get that sprocket off but mine appears to be at the same position doesn't quite look like it's pointing directly to the top. One question I have is, is the crankshaft position sensor that sensor directly above the crankshaft sprocket? If so does it read each of those knobs on the backside of the sprocket for timing readings? I ask because I broke one off the sprocket and don't know if I will need to replace the sprocket. Hopefully I didn't break your thread but I can take a picture of my sprocket to show you where it is lined up for TDC it's the 2.2 but I'm sure it's the same.
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Old 12-30-2008, 09:47 PM   #9
weston666
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Default hmmmmm

hmmmmm
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Old 01-04-2009, 10:14 PM   #10
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Looks like your crank pulley could be 1 tooth off. You might try lining the markings up on the crank pulley by turning the engine and see where the cam gears are setting
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Old 01-04-2009, 10:48 PM   #11
Danny Boy
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I'm realigning the timing belt and putting it back together hopefully tomorrow.
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Old 12-02-2009, 08:02 AM   #12
SilverDropTopGT
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Bump...Hey Dannyboy did you ever get this resolve? was the timing indeed off?

Im getting the same symptom as you are discribing.
i put in a new battery [as mine was toasted], installed a new cam sensor from subaru dealership and the car started up and ran fine for abour 5 min or until it was warm, then it would throw the p0341 code and it would idle really low stumbling and when you give it gas it hesitated.

I pulled the code p0341 code again

I reset the ecu [ disconnecting the battery]

Car ran great for a couple min then problem still existed with the stumbling/vibrating motor idle and the hesistation within all the rpm of giving it gas.
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Old 12-02-2009, 08:18 AM   #13
SilverDropTopGT
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Update from Dannyboy via PM
He advise it that the timing was off by 1 tooth.
So for future reference if you have a problem like this and you did replace the cam sensor and it still didnt work. then check your timing its probably a good chance you skipped timing

i had a 2002 Subaru Impreza Wagon 2.5TS 2.5L EJ251 SOHC P0341 [ this is for help with people searching the same problem ]

I hate to read a thread and not find the resolution to the problem
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Old 07-21-2013, 06:38 PM   #14
chadness
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Quote:
Originally Posted by SilverDropTopGT View Post
Update from Dannyboy via PM
He advise it that the timing was off by 1 tooth.
So for future reference if you have a problem like this and you did replace the cam sensor and it still didnt work. then check your timing its probably a good chance you skipped timing

i had a 2002 Subaru Impreza Wagon 2.5TS 2.5L EJ251 SOHC P0341 [ this is for help with people searching the same problem ]

I hate to read a thread and not find the resolution to the problem

Thanks for filling us in. Glad to know what solved the problem
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