P2002 fix

[BB's 250]

Anyone know what the fix is for this. P2002 Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
This is on a stock truck. I have been searching and cant find any answers.

[69Stang]

Do you have a CAI? You say stock, but your sig says otherwise. Mine threw that code a few weeks ago while towing 7500 lbs. I read it was because of the CAI. I reset it and it hasn't been back.

[BB's 250]

It is on a buddys truck not mine, but yes he has a cai. I got to thinking that it is just not completing the regens and the dpf is getting full, otherwise just a bunch of 5 min trips. I told him to get it out on the hwy and drive the crap out of it.I told him to clean his afe, code cleared but everytime he gets on the throttle it comes back on.

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[69Stang]

If you google P2002 Code you'll get a lot of hits. The only fix I found was if he has an AFE II filter code p2002 - Ford Truck Enthusiasts Forums

It seems to be hit or miss if the code returns. Mine hasn't came back yet (knock on fake wood in my F250).

Edit: looks like doing the DPF delete and adding a tuner will also get rid of the code.