p1280 code
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5th Wheeling
Joined: Jan 2008
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p1280 code
I'm not sure if this could have cause this code to come up or the sensor is bad or what. I have a 2000 f-250 with 7.3, 281,000 miles. I have always used standard Rotella oil and last week installed Rotella synthetic for the first time and now i have a service engine light on. My buddy's code reader shows a p1280 code low pressure. The truck is running fine. Should i start with changing the ICP first and see if that clears it up?
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
You probably just got some air in the line. Clear the codes and see if it returns. If it does, the Injector Control Pressure sensors last about 12-13 years and 275K miles. I'm clowning around, but mine just died at those numbers.
Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
What code reader is he using? When you cleared the code and it came back, did the CEL come back on? Might just be a code reader issue.
Otherwise check the wiring to the ICP sensor. 1280 is what you get if you unplug the sensor while it's running.
Otherwise check the wiring to the ICP sensor. 1280 is what you get if you unplug the sensor while it's running.
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5th Wheeling
Joined: Jan 2008
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He used a snap on reader, his best of the three he owns. I checked the wiring today it was attached and from what i can see they look ok. I ordered a new motorcraft sensor from Riffraff last night. I'm sure the old one is ready for a update. I will see what that does. Is there any chance the synthetic oil viscosity had an affect on the sensor? I'll clean the contacts tomorrow and see what that does.
Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
Pressure is pressure. Synthetic isn't going to build any more or any less pressure than regular oil. It's just going to flow and wear different.
Now if the synthetic isn't properly rated, or if you added a bunch of oil additive, then it could be foaming and causing an issue, but if it's good diesel rated oil with no other additives in it, then it's not the oil.
Now if the synthetic isn't properly rated, or if you added a bunch of oil additive, then it could be foaming and causing an issue, but if it's good diesel rated oil with no other additives in it, then it's not the oil.
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5th Wheeling
Joined: Jan 2008
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Pressure is pressure. Synthetic isn't going to build any more or any less pressure than regular oil. It's just going to flow and wear different.
Now if the synthetic isn't properly rated, or if you added a bunch of oil additive, then it could be foaming and causing an issue, but if it's good diesel rated oil with no other additives in it, then it's not the oil.
Now if the synthetic isn't properly rated, or if you added a bunch of oil additive, then it could be foaming and causing an issue, but if it's good diesel rated oil with no other additives in it, then it's not the oil.
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Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
I switched over to Rotella synthetic for a while when I had a little over 300,000 miles on the truck. Local walmart started selling it for less money than the regular rotella oil so I made the switch. Ran it for 4 or 5 oil changes till they stopped carrying it and then switched back to the regular stuff.
No codes, no leaks, no troubles at all and it's been over 100k miles since I switched and switched back.
No codes, no leaks, no troubles at all and it's been over 100k miles since I switched and switched back.
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