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Re: I give up! CEL P0401 is BACK
Like you, I was beside myself, and was told a number of different things from a number of different mechanics.
After I replaced my second EGR, I still had the CEL.
We ended up haveing to pull the top and lower manifolds to get to the clogged tube that ran from the EGR.
It was completly clogged......and there was no chemical that could clean it.
it had to be removed and we had to use tools to break up the carbon build up.
Ended up selling the other fairly new EGR on Ebay.....
Repair job cost me around $300 in labor
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