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Old 01-15-2002, 02:33 PM   #1
zsurfrin
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Member#: 11034
Join Date: Oct 2001
Location: Jacksonville
Vehicle:
2002 WRX
Platinum Silver

Default Camshaft Position Sensor

This has happened to me 2 times thus far. The other day i was with my dad and was his first time riding in my car. He wanted me to punch it, and i did. When i got too about 6300 rpm my cel light came on. Then after a few minutes it went off. The next day it did the same thing. Anyway i took it to the dealer to have the gusset replaced and asked him too run it for a code. PO340, camshaft position sensor, asked him what could cause this and he said the engine rpm was too high. I told him he was crazy and that my car had never seen 7000rpm, which is the redline, and i said to him that even if i did red line it that the cel should not come on. Last time i changed the oil, i put a little too much oil in where it was just above the line on the dipstick. Nothing major! I thought that when i revved it high the oil pressure was getting too high, causing the cel. Could the oil being a bit over cause this code? Is it just the sensor? Someone with knowledge in this area please help.
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Old 01-15-2002, 02:57 PM   #2
Tuning Factory Inc.
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Some people havbe reported this code at random, myself included. Folks have mentioned that unplugging the sensor and replugging it in seemed to help.
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Old 01-15-2002, 04:56 PM   #3
tdman77
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I have only gotten this code once, when I banged the rev limiter. But there have been other times that I have hit the limiter with out the CEL. Are you running underdrive pullies? This has been known to cause this CEL.
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Old 01-15-2002, 05:56 PM   #4
Jon [in CT]
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If you scan the WRX CEL log thread (200+ posts at http://www.i-club.com/forums/showthr...postid=1367000), you'll find a fistful of P0340 reports. This is one of the codes that usually gets your ECU re-flashed (see http://www.i-club.com/forums/showthr...hreadid=110622). You should not receive this code just because you bumped into the rev-limiter, and you certainly shouldn't see it at only 6300RPM. The person you talked to at your dealership is an idiot. Don't let him/her work on your car.
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Old 01-15-2002, 08:36 PM   #5
Austin
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Default Re: Camshaft Position Sensor

Quote:
Originally posted by zsurfrin
Could the oil being a bit over cause this code?
No.
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Old 01-15-2002, 10:41 PM   #6
tdman77
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I have also gotten the emission code "gas cap off/fail", this is also another ECU flash code. I refuse to have the dealer reflash my ECU due to the negative feedbacks of some people here. I am not too worried about either codes since they were both one time accurances. I have put around 7K since the last code and have not had any problems.
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Old 01-15-2002, 10:49 PM   #7
Jon [in CT]
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tdman77, please cite the "negative feedbacks of some people here" to the re-flash. I'm not aware of ANY adverse reactions.
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Old 01-16-2002, 10:00 PM   #8
zsurfrin
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So all I need to do is have the ecu re-flashed. Will the dealer do this for me?
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