1263 / 1575
STORME 400NM
SR
NO
DTC
FTB
DESCRIPTION
CAUSES
EFFECT ON VEHICLE
CHECK
POINTS
CORRECTIVE ACTION
MIL
STATUS
CEL
78
P0266
92
Performance or Incorrect
Operation
1. This DTC gets logged due to the
mechanical failure of the injector of
cylinder 2 or Cylinder 2 or MDP
(minimum drive pulse) related issue of
Injector of cylinder 2
1.
EMS ECU doesn't activate AC
compressor relay eventhough
AC request is activated by
customer and applies default ac
torque.
2.
EMS ECU Freeze (Do not
activate) IMV current trim fault.
3.
EMS ECU Increases idle target
speed.
4.
Apply reduce torque 1 mode:(60%
of torque) or reduce torque
mode:(80% of torque).
5.
EMS ECU disable's SPC (Speed
Pilot Control) strategy, no more
SPC trim update.
6.
EMS ECU disables cruise control
function.
7.
EMS ECU disables RVD on
injector Cylinder 2.
8.
EMS ECU Enters into SPC (Speed
Pilot Control) extended mode
(wider area…).
9.
EMS ECU disables IMV resistance
estimation.
1.
Check the cylinder for leaks; if noticed Perform necessary
action/repair work to arrest the cylinder leaks.
2.
Ensure Cylinder 2 Injector connector connected to the Injector.
3.
Check the inlet ducts for blockages if any; clean the duct and
check for EGR operation.
4.
Check tappet condition & valve setting; perform the necessary
repairs in case of any problem.
5.
Check whether the injector is functioning properly or not by
performing Injector I/O control test; Replace Injector if faulty.
6.
Check for Injector Related faults - P0202 or P2147 or P2148. If
present then follow the rectification procedure of the
respective DTC's for resolving this issue.
7.
Check whether the C3I values written into EMS ECU for injector
cylinder 2 are correct and corresponding to Injector of cylinder
2.
8.
Check for any glow plug related faults - P0380-12, P0380-11,
P0380-13, P0380-14. If present then follow the rectification
procedure of the respective DTC's for resolving this issue.
9.
Perform Compression test, if test reports a weakness of one of
engine cylinders then make necessary repairs for that
cylinder.
10.
Swap the Injector of cylinder 2 & 1, Swap thier C3I values
also and perform driving cycle. Check if P0266 disappears
and P0263 appears because of swapping, then it is confirmed
that there is a problem with Injector Cylinder 2 ; Replace the
injector of cylinder 2 & Rewrite the C3I values of all injectors.
11.
If problem persists, replace the ECU.~12 Final check after
rectification~
Run the engine at idle for some time and check this DTC is
not re-appearing
OFF
ON