Yanmar 6LY3 series Service Manual page 339

Troubleshooting by DTC Fault Codes
12/05
DTC Fault Code
DTC / FMI
1. Engine running
2. Does not meet target value of the injection timer phase
P0216/7
3. 10 seconds
4. PWR REDUCTION, CHECK ENGINE on the TELEFLEX display
Engine cannot control the injection timer.
Fail Mode
Injection timing will be fully retarded or may stick at fixed position.
Limited Operation
Maximum engine speed is limited to 1800 rpm.
Fail Release
No
ECU would detect DTC of P1220 or P1225 if the injection timing control solenoid (timer solenoid) has a
Remarks problem with the wire harness. White smoke or black smoke may increase more than usual because of
failure mode of the injection timing control.
Fault
DTC / FMI
1.
2.
3.
P0216/7
4.
5.
6.
Troubleshooting Procedure
1. Check the crank and cam speed with a YDT
and see if they are stable.
If they are not stable, check the speed sensor.
2. Check the performance of the timer device with
a YDT. Condition and procedure of YDT
operation:
• Engine condition: Running at low idle and gear
not engaged.
• YDT: Diagnostic Test
Check the MANUAL check box of the
Direct timer Position Control.
Click the DESIRED cell and change
valve.
(a) If the device remains in the retarded or
advanced position, check the wire harness
of the hydraulic timer solenoids and also
check the solenoid valve. (Replace the wire
harness or timer solenoids if something is
wrong.)
6LY3 Service Manual
1. Condition, 2. Fault, 3. Time to Detect, 4. Display
Timer or hydraulic device
Timer mechanical problem
Oil volume (Leak flow > 0.2 kgf / mm
Check the oil pressure.
Check the timer electromagnetic valve.
Replace the timer electromagnetic valve.
Active Control
© 2007 Yanmar Marine International
Probable Cause
2 ) (285 psi)
(b) If the injection timing is not changing, and
remains in same position (except at the
retarded and advanced positions), replace
the fuel injection pump (FIP) and the timer
device. May have some mechanical
problems within the injection timing device.
TROUBLESHOOTING
Check Point
Timer device
speed sensor
Oil system
Timer solenoid (Adv / Ret)
13-49