DD15 SPN 1327/13 Troubleshooting

SPN 1327/13

The fault condition is related to cylinder #5 exhibiting a misfire event. The entry conditions for this code are:‪

  • Engine speed is above low idle
  • All cylinders are active, no fault reactions
  • Engine speed/torque is steady

This fault can occur due to the conditions listed below:‪

  • Cylinder kit failure
  • Valve train failure
  • Lash adjustments
  • Injector
  • High pressure fuel line (rail to injector)
  • Debris entering injector (intermittent faults)

Check as follows:‪

  1. Using DDDL 7.0, check for multiple codes.
    1. If additional fault codes are present along with 1327/13, service the additional fault codes first.
    2. If only 1327/13 is present go to next step.
  2. Using DDDL 7.0 perform “Compression Test” listed under “Service Routines”.
    1. If cylinder #5 shows low compression, the issue is related to a mechanical failure/issue for that cylinder. Fix cylinder concern and return to step 1.
    2. If all cylinders are within 10%, go to next step.
  3. Start and bring engine up to operating temperature (over 140°F/60°C).
  4. Using DDDL 7.0 read parameter “Idle Speed Balance Values: cylinder #5” under “Instrumentation” section.Note: For the idle speed balance values to update, the engine speed must be at idle.
    1. If value for cylinder #5 is at its maximum limit of +100, go to the next step.
    2. If value for cylinder #5 is less than +100, fault may be intermittent. Obtain information from customer on driving habits, recent repairs, number of occurrences when fault code set, or situations when the code occurred. Try to retest engine within these parameters.
  5. Inspect fuel line from rail to injector for damage.
    1. If damage is found, replace if necessary. Refer to “87.1.1 Verify Repairs” .
    2. If no damage was found, replace injector. Refer to “87.1.1 Verify Repairs” .

Verify Repairs

Verify repairs as follows:‪

  1. Turn ignition OFF.
  2. Reconnect any electrical connections that were disconnected to perform the diagnosis.
  3. Clear codes with DDDL 7.0 or latest version.
    To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.‪
  4. Start and bring engine up to operating temperature (over 140°F/60°C).
  5. Verify operation is satisfactory and no warning lamps illuminate. If warning lamps illuminate, troubleshoot the codes.

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