P2002 Code w/ No Check Engine Light

[08FX4RBP]

I am getting a P2002 Code w/out a check engine light. The only mod i have done is a AFE drop in filter. I have only been getting this code since the temp has been below 40 degrees here. I can pick it up on my monitor, but it does not throw the ckeck engine light on..............Any suggestions??

[benjamin24]

P2002 Diesel Particulate Filter Efficiency Below Threshold (Bank 1) This is from the sticky at the top of the section. I got this also when running the AFE intake along with another code that set off the engine light. So probably related and not much to worry about.

[Big Angry Hillbilly]

It's from the combination of the cold weather and the a/m filter.

[08FX4RBP]

Code popped back up, but still no CEL.....is it going to affect anything?

[Big Angry Hillbilly]

It may affect regeneration frequency/length and after a few times of the PCM seeing the fault it will likely throw the check engine light on.