So my CEL came on saturday morning. No limp mode, everything runs fine. I Figured it was probably nothing big. Came up these codes. I havent gone under the truck yet, but The P0138 code is a O2 sensor code, so Im wondering if the URD O2 sim went bad. The other code is an ECM/PCM failure which doesnt make sense since no limp mode, and the truck runs fine.
Any one with DT long tubes have this problem?