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P2021 Diagnostic Trouble Code Discussion for March 2017

Intake Manifold Runner Position Sensor Circuit Low (Bank 2)


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Trouble Ticket Help Requests for DTC P2021
Help Request Posted
2006 Dodge Sprinter 2500 2.7L Stall VIN: WD8PD64486
P2021: Fuel Rail Pressure Malfunction - Rail Pressure Too Low. Vehicle came in with high pressure pump already replaced. Vehicle will stall under high load, and then start right back up. Found the high pressure actual vs desired to be about 4000-5000 off. Fuel psi would start bleeding off from 14,000 to about 10,000 befor...
March 14, 2017