P0341 code, Help Please!!

[MScheiper]

On my 04. 5, driving across Montana and had an issue this morning. Truck started up this morning and started rough, lots of smoke and very rough idle. Engine idiot light came on and P0341 came on as a code. Truck runs fine down the road, but seems to have a rough idle. After a few starts and stops, the code is cleared automatically and the light goes off. Seems to do it worst when it first starts up in the morning, code comes back and light comes back on, but rough idle still seems present during driving. Have restored it to stock setting on the Smarty, but still does same thing. Any help or suggestions?? Thanks!

 

[ASchwartz]

On my 04. 5, driving across Montana and had an issue this morning. Truck started up this morning and started rough, lots of smoke and very rough idle. Engine idiot light came on and P0341 came on as a code. Truck runs fine down the road, but seems to have a rough idle. After a few starts and stops, the code is cleared automatically and the light goes off. Seems to do it worst when it first starts up in the morning, code comes back and light comes back on, but rough idle still seems present during driving. Have restored it to stock setting on the Smarty, but still does same thing. Any help or suggestions?? Thanks!

Check the camshaft sensor, if may be dirty or loose.

 

[JVolpe]

P0341: Insecure sensor/rotor, air gap, wiring, Camshaft position (CMP) sensor



Possible Cause: Insecure sensor/rotor, air gap, wiring, Camshaft position (CMP) sensor



Could be the wiring to the Camshaft sensor or the sensor itself. You can check the sensor connector, it is a pain to reach on the front drivers side of the engine above the Crankshaft sensor on the same wiring harness.

 

[MScheiper]

Thanks for the help guys! Will check it tomorrow morning and see what I find. NOt sure, but is the sensor hard to replace? Thanks!

 

[JVolpe]

Here is the DR manual instructions:



REMOVAL



The Camshaft Position Sensor (CMP) on the 5. 9L diesel engine is located below the fuel injection

pump. It is bolted to the back of the timing gear housing (Fig. 8).



(1) Disconnect electrical connector at CMP sensor (Fig. 8).

(2) Remove sensor mounting bolt.

(3) Carefully twist sensor from timing gear housing.

(4) Check condition of sensor o-ring.



INSTALLATION

(1) Clean out machined hole in back of timing gear housing (cover).

(2) Apply a small amount of engine oil to sensor o-ring.

(3) Install sensor into timing gear housing (cover) with a slight rocking action. Do not twist sensor into position as damage to o-ring may result.



CAUTION: Before tightening sensor mounting bolt, be sure sensor is completely flush to back of timing chain housing (cover). If sensor is not flush, damage to sensor mounting tang may result.



(4) Install mounting bolt and tighten. Refer to Torque Specifications.

(5) Connect electrical connector to sensor.



#ad

 

[MScheiper]

JVolpe, Thanks for all the details, greatly appreciated! Will take a look this morning and see what's going on. The diagram is definitely a help Thanks Again!

 

[MScheiper]

Well got home without replacing the cam sensor. Sometimes has a rough idle when starting for the first time after sitting. Seems like it has a slight ping while idling like a preignition noise in a gas engine. Could be just me though Was wondering if I should still replace it or just leave it? If replacing it, where would a good place be to get a replacement from? Any and all thoughts appreciated. Thanks!

 

[BHaner]

Well got home without replacing the cam sensor. Sometimes has a rough idle when starting for the first time after sitting. Seems like it has a slight ping while idling like a preignition noise in a gas engine. Could be just me though Was wondering if I should still replace it or just leave it? If replacing it, where would a good place be to get a replacement from? Any and all thoughts appreciated. Thanks!

Keep us posted. .



Mine has the same thing going on...



Replacing the cam sensor didn't solve it.

 

[BHaner]

More info...



After the truck sits overnight, or over the day while I am at work... It will stumble on startup... Then blow white/blue fuel smelling smoke. The stumble will go on for less than 5 seconds, but the smoke continues untill you drive for about 30'.



I also have a rough idle, and what sounds like pinging now and then...



This does not happen after the truck is warm. It must sit for at least 4 hours.

 

[MScheiper]

More info...



After the truck sits overnight, or over the day while I am at work... It will stumble on startup... Then blow white/blue fuel smelling smoke. The stumble will go on for less than 5 seconds, but the smoke continues untill you drive for about 30'.



I also have a rough idle, and what sounds like pinging now and then...



This does not happen after the truck is warm. It must sit for at least 4 hours.

Thanks for the response, will keep you posted. Seems to be intermittent with mine.

 

[BHaner]

Thanks for the response, will keep you posted. Seems to be intermittent with mine.

Intermittent here too... Not sure what does it. . Almost ready to take it to... ... a dealer...



Thanks.

 

[Msilbernagel]

Similar symptoms here too. "What's changed"? I had a rail relief valve go, and on the process of diagnostics and repair ended up with a set of DonM's Flux 1 injectors (40HP - ). Truck runs great, but I was left with the symptoms you describe... AM smoke to the end of the driveway (bluish-white-diesel smelling), a pinging sound just off idle (rolling into the throttle, but not with any kind of power being applied) that has a bit of an 'echo' to it - like hitting a long pipe or wire with something metal (?), and a little stumble while cold/smoking at idle and coming off of it.



All this for perhaps 30 seconds once I start moving the rig, but if I just let it sit there idling it keeps smoking longer of course.



I have a Rokktech sensor, which advances the timing a bit, and I'm told the injectors add a bit more timing - and that the pinging is probably that. It goes away before I get to town (the pinging) as the truck warms up (6 mi?).



I'm scratching my head too. I've been using injector cleaner (Seafoam:1, PS Cleen silver:1, 2 Cycle oil:1, and something else... ) just to see if I can shake something loose, lube/unstick it, or what.



Seems consistent. Now, 8 hours later when I go home from work it doesn't smoke - just that first thing in the morning startup when it's cool.



Mark

-

Intermittent here too... Not sure what does it. . Almost ready to take it to... ... a dealer... Thanks.

 

[KBlankenship]

P0341 code problem to

I have the same problem and replaced the sensor and it went away for a few thousand miles and now it has returned. Has anyone figured this out yet. Thanks

 

[BHaner]

I have the same problem and replaced the sensor and it went away for a few thousand miles and now it has returned. Has anyone figured this out yet. Thanks

No solution yet... New crank and cam sensors last week... No change.

 

[MScheiper]

Weird

The story gets stranger.....

My father was driving through the same area in Montana as I was back in August just a few weeks ago. Stayed at the same motel. Basically the same run as I did. Portland OR to Butte MT. Woke up and started our bone stock '06 and had the same issue I had with the '04. 5. Same code, same rough idle etc. Ran fine down the highway at speed. Drove it back to the east coast and seemed to clear itself up. All I can say is what the H@*&??



Reset my ECM on the '04. 5 with the smarty JR to level 1 and the codes were cleared in the process. No problems as of yet. No codes. Starts up like normal, little blue smoke at "cold" start up, but runs and idles smooth. Haven't done anything else to it. Gremlins have retreated for the moment... .

 

[PaulBarker]

My 06 started doing the rough idle at start up in the last two mornings with white/blueish smoke for about 30 seconds. While driving though, I have had no problems except sometimes on an extended drive the rail pressure will fall a few thousand PSI at idle and running down the road. I think it is the Pricol pressure gauge acting up. Has anybody had any luck on figuring out the rough start up?

 

[Rollin' Heavy]

The AC wiring rubs bare on a bolt on the rear of the AC compressor... it does cause some weirdness. I found mine worn through quite a bit of wiring insulation, with a fairly large bare spot. It caused a rougher than normal idle... the truck actually started hard initially once it was repaired (like the PCM/ECM were relearning a new parameter).



I remember reading it is a combined circuit that also serves the crank/cam sensors?



Steved is the one to ask. Not sure if this will help. Both on here and on Cummins forum I have been running into this a lot lately.



I hope this helps but not really sure.

 

[THerber]

I just had my 03' throw P0341 code yesterday, the truck is running fine, the only thing funny is when accelerating the tach jumps all over the place. I stopped and picked up a new sensor at a dealer, it was raining and nasty cold out so I threw it in the tool box and headed down the road. We drove 900 miles with the only problem being the tack acting funny. I think I will go ahead and replace the sensor and see what happens, but I just wanted to post to see if anyone has ever seen this symptom with the tach to see if I am on the right track with replacing the sensor.



We are in Tennesse for the next week before driving back home, and the truck is going to set for most of the week now anyway.



Thanks,



Tim

 

[Blakers]

Is there any new information on the P0341 code problem? Mine did it today, though I didn't notice any symptoms in sound or performance. Gonna go out to look over things now.

 

[THerber]

Blakers,
I replaced the crank sensor on mine and it is still throwing the code and the tach is jumping all over the place when you really lay into the throttle, didn't ever get any response to my post. I would love to get it fixed but not sure what else to do at this point.

Good luck, and let me know what you find.

Tim