P0171, P0410

[rlrnr53]

Have been getting these codes for about 3 weeks now. I'm trying to figure out if the two are related, or just a coincidence. Usually trruck is in 4 hi and I've spun the wheels trying to back in my parking place at home. I haven't had a lot of time with the weather and family oblogations to check very much. I can clear the codes and might not set them again for a week or more. The P0410 code sets more often by itself, but has set with the P0171 at times. The P0171 usully will clear itself after a few starts. Any ideas?

[F9K9]

You've exhausted a search here already? Not being a smart alec, I am just curious. P0410.

[rlrnr53]

I've checked about all the posts, but due to the weather, I haven't had time to really check any thing out. Open air garages and temps in the single digits just don't mix unless it's something major. I mainly was wondering if anyone else had run into this combination of codes. What puzzles me is that I don't get the P0171 unless i get the P0410, but the P0410 will set randomly and under different conditions.

[F9K9]

I really don't know but, I will look around when I can for you.

[roadrunner]

If you're getting both codes as a related problem I would start by checking the air injection manifolds and their check valves (should be able to blow through the check valves one direction and not the other). A check of the solenoid valve located by the air pump would also be a good idea as it is in an area that can get moisture in it and raise all kinds of problems. Also check the air supply hoses from them down to the air pump under the radiator support and a check of your exhaust system is in order to make sure there are no spots leaking air into the exhaust. The exhaust leak is less likely as it would not tend to be related to the P0410 code. My opinion based on past experience having been "around the horn" a few times with these two codes.

[rlrnr53]

Thanks roadrunner. I'll be sure to check all of it when the weather breaks and I quit having to work so much ot. 65 in. of snow so far this year has made for little time other than work. Yesterday was a long day, reg 12 hour shift, and a callout of about 3.5 hours last night to drive 40 miles to change a flat tire.