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01-14-2018, 12:52 PM | #1 | |
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P0341 2004 grand prix gt
My light came on and the code was p0341 camshaft my car was running a little like crap so I put a new senser in now it runs good but the light keeps comeing on every 5 miles p0341 then I clear it 5 miles later it's back on I need help on this can't figure it out
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01-16-2018, 02:59 PM | #2 | |
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Re: P0341 2004 grand prix gt
I recently had a problem with CMP sensor last year. I checked all the wiring between CMP sensor, ICM, and PCM when I was troubleshooting before deciding to replace the sensor (which did fix my problem). Obtain a schematic if you can as well as the troubleshooting guide from the FSM...I don't have those with me right now.
I wonder if PCM is not getting valid signal but engine is running well with its default values. Make sure you put in the correct replacement part (check part number). Another thing I did (with key on/engine off) was to monitor the CMP signal at PCM connector (using multimeter) while my son rotated the crankshaft to see the input signal (which is pulse width modulated if I recall correctly) toggle high/low as the magnet on the camshaft passed the sensor magnet. I forget the crank:cam turns ratio...2:1 I think. See also http://troubleshootmyvehicle.com/gm/...e-cam-sensor-1. Good luck and let us know how you make out.
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01-20-2018, 07:54 AM | #3 | |
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Re: P0341 2004 grand prix gt
I did that checked all the wires just got a crankshaft senser to try. And a altanator light came on. Chargeing systems failer But don't get it charges at 15.2
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01-20-2018, 10:44 AM | #4 | |
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Re: P0341 2004 grand prix gt
15.2 is high. That's why you got a charge system fault. It should stay around 14.5 when running.
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01-20-2018, 02:10 PM | #5 | |
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Re: P0341 2004 grand prix gt
The new one I got said it will charge anywhere for 13.5 to 15
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01-20-2018, 08:35 PM | #6 | |
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Re: P0341 2004 grand prix gt
And at 15.2 it will throw the charging system failure that you got. Again it should stay around 14.5
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01-22-2018, 04:49 PM | #7 | |
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Re: P0341 2004 grand prix gt
Ok got a ten day today. Now the guy who I went to for the inspection sent me to his nephews shop who had a scan tool that mesures waves on everything to do with the car. He reprogramed the computer with the 14,000$ tool. Now the charging system failure came back on with new alternator in. light and car bonded down. I'm stumpted what now lol
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01-22-2018, 04:53 PM | #8 | |
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Re: P0341 2004 grand prix gt
But no light yet Ben 9 miles so far after 14 k tool made it 20 befor that
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01-22-2018, 05:00 PM | #9 | |
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Re: P0341 2004 grand prix gt
Like I said 15.2v will cause that light.
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01-23-2018, 06:08 AM | #10 | |
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Re: P0341 2004 grand prix gt
I put the new alternator on it
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01-23-2018, 12:57 PM | #11 | |
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Re: P0341 2004 grand prix gt
Are you taking your voltage readings from the I/P cluster or a voltmeter across the battery?
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03-18-2018, 08:19 AM | #12 | |
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Re: P0341 2004 grand prix gt
At the battery. and I got the car fix and i got a inspection sticker. it was the icm and the alternator light hasn't came back on
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03-18-2018, 08:49 PM | #13 | |
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Re: P0341 2004 grand prix gt
Wow!!!!!!!!!!!
I have never heard of an ICM causing an alternator to overcharge.....but apparently it fixed it..... |
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