Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
1. Engine running.
2. With the scan tool check for active DTCs and listen for an engine knock.
  Is the DTC active and engine knocking?
  
  Yes
  - Go To 2.
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECKING FOR A LEAKING FUEL INJECTOR
1. Turn the ignition off.
2. Use the fuel system leak tester blocking tool to block off Fuel Injector 2.
3. Start the engine and let idle for one minute.
  Does the knock go away and P020A become inactive?
  
  Yes
  - Replace the Fuel Injector. If this DTC was accompanied by a Crankcase Pressure Sensor DTC, damage to cylinder may have occurred.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Diagnose engine for a mechanical failure.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .