P0401 Code keeps coming back
Posting Guru
Joined: Oct 2009
Posts: 2,453
Likes: 4
From: AZ
the bad thing about the batt trick is your truck goes into relearn when you do that and they tend to drive funny for a while
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Thread Starter
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Freshman User
Joined: May 2010
Posts: 32
Likes: 0
From: Mullica Hill, NJ
I haven't noticed any difference in the driving after reconnecting the batteries.
Thanks BPofMD for the headlight tip, will try that the next time. I hope I don't have too.
I have just started to read up on the SCT's and the Edge CST Insight. I have a lot of learning to do. This is the first vehicle that I have had in a long time that I wanted to work on and hop up.
Thanks BPofMD for the headlight tip, will try that the next time. I hope I don't have too.
I have just started to read up on the SCT's and the Edge CST Insight. I have a lot of learning to do. This is the first vehicle that I have had in a long time that I wanted to work on and hop up.
Thread Starter
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Freshman User
Joined: May 2010
Posts: 32
Likes: 0
From: Mullica Hill, NJ
Got the code checked today and it is P0401 again. HELP!!!
I know that my Excursion has had a on going coking problem. If the intake is all sooted up, what does the exhaust side look like? I ordered a cat delete pipe last week and it came on Saturday. I held off on putting it on to see if the CEL would come back. The CEL came back and the pipe went on. The delete pipe went on nice and easy. The cat is all sooted up. I can barely see through it. I have never looked in to a new cat to know what the difference is. WOW there is a difference in driving it. The pedel response is quicker and I can hear the turbo whine now. BIG SMILE. Maybe this will keep the CEL off???
I hope
I know that my Excursion has had a on going coking problem. If the intake is all sooted up, what does the exhaust side look like? I ordered a cat delete pipe last week and it came on Saturday. I held off on putting it on to see if the CEL would come back. The CEL came back and the pipe went on. The delete pipe went on nice and easy. The cat is all sooted up. I can barely see through it. I have never looked in to a new cat to know what the difference is. WOW there is a difference in driving it. The pedel response is quicker and I can hear the turbo whine now. BIG SMILE. Maybe this will keep the CEL off???
I hope
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
odds are it wont. the p0401 and the CA emmissions is a pita. You may want to try the reflash and see if that helps.
also like I said check the cac boots not just the clamps. you need to look at the bottom side that you cant see. you can use a mirrior.
also like I said check the cac boots not just the clamps. you need to look at the bottom side that you cant see. you can use a mirrior.
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
yes it is possible to go away with it, good luck finding someone that will do it. its a 25k fine if you get busted.
Thread Starter
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Freshman User
Joined: May 2010
Posts: 32
Likes: 0
From: Mullica Hill, NJ
I still a little new to all of this. "CA pack" I am guessing it is in the programing in the PCM?
25k fine, Even if I am in New Jersey?
And Thanks Cheezit for the help and info.
25k fine, Even if I am in New Jersey?
And Thanks Cheezit for the help and info.