- Codes: PO401 – EGR flow insufficient detected PO161 – Heater Circuit o2 sensor Both these codes tie into the same wiring. When the conditions/thresholds are met the PCM is not commanding the EGR to open intermittently. Both the EGR and the o2 sensor are checking fine. Cleared codes and test drove again and different codes appeared. Confirming the PCM is not operating at designed.
- Rebuilt PCM
- ECM / PCM CONTROL MODULE – Remove & Replace – Power Control Module (PCM) – [Includes: Additional time for use of scan tool to perform this procedure.] – [NOTE: Labor estimates listed are for R&R only and DOES NOT include diagnosis time.]
Brittany B. gave our service a 5 star review on 7/23/2021