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Old 05-22-2015, 03:16 PM   #1
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code P0343

anyone know if pulling the camshaft position sensor (hall sensor) wire loose (or partially loose) would cause a code p0343?
I just replaced my AOS and Oil filler pipe, after I started the car back up I almost immediately got the code.
since that sensor wire runs up close to the AOS, it is possible I hit it while installing the AOS. Looking at it earlier, I see a wire running from the sensor to a connector, then up under the intake. everything seemed ok, but could not see well enough under the intake to know if it was fully connected.
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Old 05-22-2015, 04:11 PM   #2
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In one word, yes.

P0343 Camshaft Position Sensor 1 – Above Limit

Potential causes:
Check the connector/wiring. Check signal wire from DME control module to CMP sensor for short circuit to B+.

This might help: 986-boxster-p0343-camshaft-sensor-code
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Last edited by thstone; 05-22-2015 at 04:15 PM.
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Old 05-24-2015, 01:57 PM   #3
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one down, one to go

went in to check the wiring and connector to the Camshaft Position sensor. unplugged the harness and checked it, looked ok, reconnected it. traced the wire up behind the J tube where it connects to the AOS. removed the J tube for a better look and immediately saw that the connector was completely pulled out. it was still clean and shiny, so it is pretty clear that I somehow managed to pull this loose while I was replacing the AOS.
In any case, plugged it back in and reset the fault codes. hasn't come back yet so I hopeful that this solved the p0343 code.
Now I just have to solve the P1126.
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Old 04-28-2016, 10:01 AM   #4
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I had my yearly inspection of my car and they found the P0343. Since it was there last year aswell (without me knowing it) i have 30 days to fix it and bring it back for re-inspection before my car becomes illegal on public roads... argh...


Anyhow, I'd like to check for obvious and easy causes before i let a dealer look at it.

WHere is the camshaft position sensor located and how do I access it? I guess the mentioned harness is attached to or close to it?

My other thought was to buy an OBDII-tool and reset the error to see if it reapears, would that be a bad thing to do?

Thanks in advance!
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