Why the CEL?
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Why the CEL?
Ok guys, I need some helpin fixing a CEL. I did the exhaust on the truck and followed every rule. Did custom 4" the whole way back after the DPF/sensors and eliminated the muffler, then used a 5" tip. I did exactly what MBRP did on their system. Everything came out nice and with almost 4k miles on it, not one issue has come up.
So then, I purchased the AFE Pro-Guard 7 intake for the truck. I installed the intake and after about 70 miles I threw a CEL P0401. I re-set the light and it came back again. Next I removed the filter and 1k miles later no more problems. Can anyone here help figure out why I am throwing a CEL with the new filter on? I know plenty of other people with their filter on this exact same truck and not one issue. Also, if you are familiar with this CEL what can I do to fix it? Any help would be great, thanks.
Nick
So then, I purchased the AFE Pro-Guard 7 intake for the truck. I installed the intake and after about 70 miles I threw a CEL P0401. I re-set the light and it came back again. Next I removed the filter and 1k miles later no more problems. Can anyone here help figure out why I am throwing a CEL with the new filter on? I know plenty of other people with their filter on this exact same truck and not one issue. Also, if you are familiar with this CEL what can I do to fix it? Any help would be great, thanks.
Nick
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Joined: Feb 2006
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From: waynesville, mo.
Straight from the 08 pced---po401---estimated egr percent is less than the minimum limit for the operating conditions. Possible causes---AFTERMARKET INTAKE OR EXHAUST SYSTEMS-restricted airflow, intake or exhaust- restricted egr cooler- egr valve position sensor bias- exhaust pressure sensor bias-map sensor bias- egr valve
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Originally Posted by vloney
Straight from the 08 pced---po401---estimated egr percent is less than the minimum limit for the operating conditions. Possible causes---AFTERMARKET INTAKE OR EXHAUST SYSTEMS-restricted airflow, intake or exhaust- restricted egr cooler- egr valve position sensor bias- exhaust pressure sensor bias-map sensor bias- egr valve
Nick
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Joined: Feb 2006
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From: waynesville, mo.
Originally Posted by cHiLi 11
I understand what the code reads. My question is why would my truck throw the CEL when other with the same set up have no isses? If anything I have allowed the truck to breath better by opening up the exhaust as well as the intake I would think.
Nick
Nick
