2011 Ecoboost P0420/p0420/p0152

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Old 12-09-2018, 03:36 PM
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2011 Ecoboost P0420/p0420/p0152

My truck is currently throwing 3 CEL’s, as mentioned in the title P0430 P0420 and a P0152. I only started to get a P0430/P0420 after the truck was recently at ford for a laundry list of work. 2 new turbos, 3 new injectors, New PCM, new plugs, inter cooler update. Truck went to ford due to extremely bad misfires, down on 2 cylinders, knowing this I assumed the P0420/430 were caused by I burnt fuel entering the cats. I replaced the entire y pipe with a Full Race Performance catted y pipe. Cel still came on, then just yesterday I changed all 02 sensors did a drive cycle and the cel came back on, with the new P0152 code. If anyone else has run into this issue and could have some info on it that would be awesome. FYI cac has 1/16th weep hole in it, I saw that as a common fix for the P0152, also with my eco tune flashed I would get a misfire on hard acceleration but with the stock tune flashed back on I do not get that. I’ve spent over $1,300 chasing these P0420/430 lights and need them to get fixed for emissions testing.
 
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Old 12-09-2018, 04:03 PM
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To fix the P0420/P0430, you need to put stock cats back on.

https://www.obd-codes.com/p0152

You may have damaged wiring changing the O2's, or one is defective.
 



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