316 is a misfire during the first 1000 engine RPM.
In most cases, it is the number 6 ignition coil failure.
Roy
HD: Misfire Detection Monitor
HD: Introduction See: Computers and Control Systems > Diagnostic Trouble Code Tests and Associated Procedures > HD: Misfire Detection Monitor - Introduction
HD1 CHECK FOR ADAPTIVE FUEL MONITOR AND HEGO MONITOR DTCS (CONTINUOUS MEMORY)
Check the PCM for self-test DTCs.
Are DTCs P0136, P0156, P0171, P0172, P0175, P2270, P2271, P2272 or P2273 present?
Yes
GO to HD3
.
No
GO to HD2
.
HD2 CHECK FOR OTHER NON-MISFIRE CONTINUOUS MEMORY DTCS
Are there other non-misfire DTC in Continuous Memory. Present?
Yes
DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to Section 4, Diagnostic Trouble Code (DTC) Charts See: A L L Diagnostic Trouble Codes ( DTC ) > Diagnostic Trouble Code Descriptions > Diagnostic Trouble Code (DTC) Charts.
No
GO to HD3
.
HD3 CHECK FOR ANY OTHER KOEO SELF TEST DTCS
Are any other KOEO DTCs present?
Yes
(If misfire or coil DTCs are present, and WDS or an equivalent tool is
available, use the scope function to verify the suspect coil.).
DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to Section 4, Diagnostic Trouble Code (DTC) Charts See: A L L Diagnostic Trouble Codes ( DTC ) > Diagnostic Trouble Code Descriptions > Diagnostic Trouble Code (DTC) Charts.
No
Key in OFF position.
For spark plug wires that are OK:
GO to HD4
.
For spark plug wires that need evaluation:
GO to JB1 See: Computers and Control Systems > Diagnostic Trouble Code Tests and Associated Procedures > JB: Secondary Ignition (COP) - Pinpoint Test
.
HD4 CHECK FOR ANY OTHER CODES THAT MAY CAUSE A MISFIRE
Check for self-test DTCs.
Are DTCs P1131, P1132, P1137, P1138, P1151, P1152, P1157 or P1158 present?
Yes
GO to HD6
No
GO to HD5
.
HD5 CHECK FOR ANY OTHER KOER DTCS
Are any other KOER DTCs present?
Yes
Key in OFF position. DISREGARD the current diagnostic trouble code (DTC)
at this time. DIAGNOSE the next DTC. GO to Section 4, Diagnostic Trouble Code (DTC) Charts See: A L L Diagnostic Trouble Codes ( DTC ) > Diagnostic Trouble Code Descriptions Diagnostic Trouble Code (DTC) Charts.
No
GO to HD6
.
HD6 CHECK THE INJECTOR DRIVER PIDS INJ1F THROUGH INJ10F
Key ON, engine OFF.
Access the appropriate INJxF PIDs for the suspect injector.
Are the PIDs status YES?
Yes
GO to HD7
.
No
Key in OFF position.
For Dedicated NGV
GO to HA27 See: Computers and Control Systems > Pinpoint Tests > HA: Natural Gas Fuel Control - Pinpoint Test
.
For all others:
GO to HD8
.
HD7 CHECK THE FUEL INJECTORS AND HARNESS FOR AN OPEN
PCM connector disconnected.
Measure the resistance between:
image
Is the resistance between 11 - 18 ohms?
Yes
Install a new PCM.
Image (Click to make bigger)
Friday, February 21st, 2020 AT 3:24 PM