new motor p0341 cam sensor performance code
- Thread starter DIESELMAFIAPER.LB7
- Start date
As i said in the other thread i highly doubt there is anything electronically wrong. I would check compression and make sure the cam and crank reluctors are installed correctly.
Who's cam is it?
If it's a regrind, most are not ground where they need to be installed, they require to be degreed in, I believe.
If it's a regrind, most are not ground where they need to be installed, they require to be degreed in, I believe.
Stock cam was in spec so just used it and I have pics in the other thread showing how it's installed there's only one way to install the things I get a rpm signal while cranking as well so
Well if the gauge moves the cam sensor is good. Are you sure you got it timed perfect? I don't know too much about the Duramax motor but I know on other engines if they are not in time it will throw a code happened on a 240 I did years ago and the Ol lady's stratus when I changed the timing belt.
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Here's Here's a question would the cp3 cause the problem with the circuit somehow?
Here's what I changed outside the short block
Cp3 is new in the valley
Ficm is now dry
Fprv removed and plugged junction block
Powder coated upper oil pan and front cover and intake runners
Truck runs when I disconnect the fpr harness cam code is gone and just have a regular performance code as it's not plugged in does this with stock tune modded tunes 2 different ecms a different harness different fpr I even tried adding a ground
Here's what I changed outside the short block
Cp3 is new in the valley
Ficm is now dry
Fprv removed and plugged junction block
Powder coated upper oil pan and front cover and intake runners
Truck runs when I disconnect the fpr harness cam code is gone and just have a regular performance code as it's not plugged in does this with stock tune modded tunes 2 different ecms a different harness different fpr I even tried adding a ground
What's the code again? do you have the full description? You said you deleted the fprv right? And when you unplug the fpr harness it runs? Maybe it won't run with it deleted. Is there any tuning the goes into getting rid of the valve to bypass the code? Sorry for all the questions.
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Last edited:
p0341 Check crank
tooth number at
CAM edge
Camshaft Position [CMP]
Sensor Performance
10 <= Crank tooth at CAM edge <= 14 14 < Crank tooth at CAM edge or
Crank tooth at CAM edge < 10
Ignition On Not in powerdown mode
Keyontime>0.5sec Engine speed > 60rpm
No related malfunction
In Syncro_Mode
15 failures out of 20
samples Every crank
and no deleting the fprv has no codes related to it and defiantly has nothing to do with the current issue. its like the guys with lly+ doing a race plug
I'm not saying your wheel is loose. But you don't have the other code?
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heres a list of what I have tried so everyone is on the same page
different ecm
new cam and crank sensor
different wiring harness
different cam reluctor wheels tried 2 others
swapped fprs
tried adding ground from engine to frame
I have ohmd out the wires from the cam sensor plug to ecm pins good except for one odd issue with the power from the c2 connector pin 44 but I put a new wire in that has continuity so its getting power had 11v
tried a ats dual pump controller for kicks and giggles
I have cleaned every block ground till shiny and used some grease to insure good connections for grounds
tried stock tunes modded tunes no change
I unhooked the ground for the fpr on the passenger side of the engine black with green strip and the fpr harness still plugged in and still cam code....
I do remember my motor mount on the drivers side the bolt I put threw was hitting the frame and I kinda had to suck it down the last 1/8'' could that bolt be dong something with the grounding the ecm isn't liking?
different ecm
new cam and crank sensor
different wiring harness
different cam reluctor wheels tried 2 others
swapped fprs
tried adding ground from engine to frame
I have ohmd out the wires from the cam sensor plug to ecm pins good except for one odd issue with the power from the c2 connector pin 44 but I put a new wire in that has continuity so its getting power had 11v
tried a ats dual pump controller for kicks and giggles
I have cleaned every block ground till shiny and used some grease to insure good connections for grounds
tried stock tunes modded tunes no change
I unhooked the ground for the fpr on the passenger side of the engine black with green strip and the fpr harness still plugged in and still cam code....
I do remember my motor mount on the drivers side the bolt I put threw was hitting the frame and I kinda had to suck it down the last 1/8'' could that bolt be dong something with the grounding the ecm isn't liking?
Last edited:
Found this site while I was looking to see if the cam and crank sensor plugs could be reversed as some vehicles are the way. Give it a look might give some useful information.
http://www.askamechanic.info/askamech2/content/view/99/55/
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http://www.askamechanic.info/askamech2/content/view/99/55/
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It has to be something simple. Just don't give up on it. You will figure it out one way or another. I will keep racking my brain on it. I'm really surprised no one else has chimed in here.
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The engine shouldnt be grounded through the motor mounts. It should have its own ground strap. It won't hurt anything if it does ground there but it should still have its own ground strap.
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all factory grounds are there and in place, just wondering if that is something screwing with the signals somehow