I recently had another post, where I reset the APPS and my problem went away, but its back. Here's the story:

First hot day, I park the truck and walk away. Come back 8 hours later and check engine light is on when I start the truck. Reads codes 0122 and 1639. APPS sensor voltage low.

I have NO symptoms. I reset the APPS, and cleared the codes. It stayed off for 48 hours. Then it came back. Cleared it again and it came back in 24 hours.

Do I need a new APPS? I have NO issues with the truck just the damned light. Is it a voltage issue? I have two new batteries in the truck ( 2 mo. old ).

So. Timbo Apps or something else?

Thanks,
Justin H

 

If you need a new one, heres one thats much cheaper than at parts stores.

AFTERMARKET APPS THROTTLE POSITION SENSOR ('98.5-'02)-Dodge Cummins Diesel Truck Accessories – Geno’s Garage