Need help with these codes
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Mountain Pass
Joined: Nov 2012
Posts: 109
Likes: 1
Need help with these codes
My brother bought a 05 6.0 one ton a few days ago. When we went to look at it I plugged in a obd2 scanner into the obd port on the truck and clicked the 'dtc' button...it didnt show anything
Today, I was taking a look at his programmer (edge) and I noticed there was a dtc section so I clicked it. It showed three codes, p0341-camshaft position sensor, p0403 EGR valve position control circuit, and p0405-egr sensor A circuit low.
The po said the truck has had the egr deleted, and there is no cel on the cluster.
At idle, 690 rpm the TFT is 79 and the ECT is 128..should these be within 15 degrees of each other? And the truck has 230 thous kms
Today, I was taking a look at his programmer (edge) and I noticed there was a dtc section so I clicked it. It showed three codes, p0341-camshaft position sensor, p0403 EGR valve position control circuit, and p0405-egr sensor A circuit low.
The po said the truck has had the egr deleted, and there is no cel on the cluster.
At idle, 690 rpm the TFT is 79 and the ECT is 128..should these be within 15 degrees of each other? And the truck has 230 thous kms
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
The EGR codes are because the valve is deleted and at least needs to be in place and plugged in for proper fan operation. The CPS code can appear because of a "stall" event meaning that starting might have been interrupted. The only way to test true coolant and oil temp spread is after a complete heat soak and then a 10-20 mile cruise at 65mph on relatively flat ground. If the temp spread is more than 15* at that point then your oil cooler probably needs changed. If you have no EGR cooler then you can get away with more AS LONG AS you use some common sense. Remember that you get a defuel at 254* and at 350* the standpipe inside the oil filter melts. At that point you get to buy another motor because yours is only good for salvage.
Thread Starter
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Mountain Pass
Joined: Nov 2012
Posts: 109
Likes: 1
The EGR codes are because the valve is deleted and at least needs to be in place and plugged in for proper fan operation. The CPS code can appear because of a "stall" event meaning that starting might have been interrupted. The only way to test true coolant and oil temp spread is after a complete heat soak and then a 10-20 mile cruise at 65mph on relatively flat ground. If the temp spread is more than 15* at that point then your oil cooler probably needs changed. If you have no EGR cooler then you can get away with more AS LONG AS you use some common sense. Remember that you get a defuel at 254* and at 350* the standpipe inside the oil filter melts. At that point you get to buy another motor because yours is only good for salvage.
My brother was saying he had to crank it for longer than usual the other day, could that hard start be classified as a 'stall'?
I am a little bit of a noob, what do you mean by heat soak?....Is that when the truck has been properly warmed up to operating temps?
Where should the egts ideally be for a warm truck/when you can drive it hard?
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
It looks like your temps are in Celsius, not Fahrenheit. But yes, a heat soak is having it fully up to temp, ie coolant above 185 f, then steady driving, no hills, no hard acceleration, coolant and oil delta in f is 15, degrees c is more like 8 difference, but coolant and oil should be over 185 at some point before doing comparison so it's properly warmed up.
TFT is transmission fluid temp. You want coolant and oil temp for the delta of 8 degrees C. Transmission is not related, need to find the correct parameters.
Yes, without EGR disconnected, the strategy the computer uses doesn't engage fan on high at 219 d f for coolant. Normally have to be towing or loaded to see this. Some folks connect the EGR and leave it sitting there. Orp, use the chino you have to delete the EGR on the tune. You will want to test.
Can you monitor these temps using a gauge while driving, I would suggest its a good idea. Read up as the dash are dummy lights, real gauges tell you more.
TFT is transmission fluid temp. You want coolant and oil temp for the delta of 8 degrees C. Transmission is not related, need to find the correct parameters.
Yes, without EGR disconnected, the strategy the computer uses doesn't engage fan on high at 219 d f for coolant. Normally have to be towing or loaded to see this. Some folks connect the EGR and leave it sitting there. Orp, use the chino you have to delete the EGR on the tune. You will want to test.
Can you monitor these temps using a gauge while driving, I would suggest its a good idea. Read up as the dash are dummy lights, real gauges tell you more.
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