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HELP! P340 p344 and is not the alternator!

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Old 09-08-2015, 04:19 PM
  #1  
Golfsito
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Unhappy HELP! P340 p344 and is not the alternator!

Hi guys,
I hope someone could help me with this as it's driving me crazy. I have the p340 p344 code which reappears every time I reset it with my sctx4. As normally is because a bad alternator I did replace it with a PA. Didnt work. I have also replaced all bearings pulleys and spark plugs and put a new timming chain kit (including new phasers). Didnt work either. I read here about an old post from taskmaster having the same kind of noises and problems I do and I dont know if he ever got them solved. I really hope some of you have the answer .
Thank you in advance for the help .
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Old 09-08-2015, 07:42 PM
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Urambo Tauro
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Cam sensor/wiring?
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Old 09-08-2015, 10:16 PM
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jwog666
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can be caused by bad cam sensor, wiring, radio frequency interference
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Old 09-10-2015, 09:27 PM
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Golfsito
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Thanks guys!, I have replaced both cam sensors also and the problem persist. The conectors look normal but I dont know about the wiring or radio frequency interference. It just happens when I start the car, anf it does not do it all the times. For the first 3 secs is like is gonna stall then recovers to 900/ 1000 rpms and the engine light comes on. What is annoying is that if I clear the code with the tuner the next time I start the car everything is fine. Then the second attempt the problem comes back again. I found also that my computer is set to Metric and when this happens(almost stalls) it resest to default Miles Imperial.
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Old 09-18-2015, 07:12 PM
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SpartaPerformance
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Check the pins in the connectors. I found an 08 GT the other day with poor pin fitment.
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Old 09-19-2015, 02:11 PM
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Golfsito
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Originally Posted by SpartaPerformance
Check the pins in the connectors. I found an 08 GT the other day with poor pin fitment.
Hi, have checked the connectors and seem to be ok. Everytime i clear the codes the car starts perfectly. Then the next time it goes to almost a stall then recovers and the checklight pops up ((
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Old 09-21-2015, 10:17 PM
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Simon1
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You sure the Alt is good? I know it's new but it is pretty common for them to fail.

I'm on my fourth I beleive...
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Old 09-23-2015, 12:08 PM
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Golfsito
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I got the alt tested and it was fine. Moreover I disconnected it and made the engine to work with the battery only. The same result. First attempt after clearing the codes all was fine. Second time the light and the codes came again(plus the low voltage related codes which were normal) I have also noticed that the engine is kinda lazy to start, like if the battery was dead but isnt, and that the computer resets(I have it in metric and goes back to the default miles)
Something electrical for sure but what!?
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Old 09-26-2015, 05:12 PM
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SpartaPerformance
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I still say you have a wiring problem somewhere.
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Old 10-06-2015, 11:02 AM
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sactown
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I had the same code, replaced the alt and the cam sensors nothing, the issue ended up being a bad oil pressure senor.
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