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Old 03-20-2014, 08:09 PM
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Exclamation neeed help truck wont start

ok so i was just in jail for the past nine moths and when i got out the other day i tried to start my truck and it cranks over but wont start i had my friend bring over his snap-on scanner and he pulled the following codes:
p0562 system voltage low(after running the batteries dead trying to start her up)
p0128 icp sensor circuit low
p0475 exhaust pressure control valve(i replaced the turbo about a year ago with a gt38r and went with the ebpv delete pedestal)
p0603 pcm keep alive memory error
when trying to start i noticed the tach wasn't moving and after looking on the forums i read that it could mean the cps is bad so i replaced that and now the tach moves but still wont start there is intermittent smoke coming out of the exhaust pipe while cranking so i know the injectors are firing. I checked the hpop and the oil level is fine. I am still kinda new to the whole diesel mechanic thing and am stumped as to what is causing my no start issue. ive searched the fourms with not much luck so any help i can get will be great. thank you in advance for the help.
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  #2  
Old 03-21-2014, 06:14 AM
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Voltage might be the Key...

The PCM has certain requirements that have to be meet. One of them is Voltage before it will trigger the IDM to fire the injectors. Make sure your voltage doesn't drop too low as you try to start (put your own meter on it and monitor while cranking).

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Old 03-21-2014, 06:51 AM
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id say voltage, also has the truck been been plugged in? if it hasnt id say plugging it in for a day or so will wake her back up, but if your batterys are dead from the extreme cold we have been having id say check voltage drop
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Old 03-21-2014, 09:26 AM
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Thanks I will check that as soon as I'm done at the dmv but I dont think that is the issue since I did replace both batteries and I dont think its an extreme cold issue since I live in California and its been 80 degrees all winter
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Old 03-22-2014, 05:49 AM
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unplug icp and try?
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