Fuel Line Replacement; Fuel Pressure Relieving - Honda 2010 CRF250R Service Manual

FUEL SYSTEM (PGM -FI)
Check for continuity between the engine stop switch 4P
(Natural) connector terminal of the wire harness side
and ground.
Connection: White /blue - Ground
- If there
is continuity. check for short circuit in the
White/blue wire between the ECM and MIl.
- If there is no continuity, check the Dle circuit as
fonow:
4P (NATURAL) CONNECTOR
(Wife sidelfemale terminals)
W/Bu
Q
l
Connect the engine stop switch 4P (Natural) connector.
~==========:-::======-,
Disconnect the ECM 33P (Black) connector. ECM 33P (BLACK) CONNECTOR
(Wire sidelfemale terminals)
Check for continuity between the ECM 33P (Black)
connector of the wire harness side and ground .
Connection: 27 - Ground
TOOL:
Test probe
07ZAJ-ROJA 110
If there is continuity, check for short circuit in the
Brown wire between the OLC and ECM.
If there is no continuity, replace the ECM with a
known good one, and recheck.
j
I n l
U
Illl
~
27
FUEL LINE REPLACEMENT
5-30
FUEL PRESSURE RELIEVING
Before disconnecting the fuel hose, relieve pressure
from the system as follows.
1. Hang the fuel tank to the left side of the frame (page
3-6).
2. Disconnect the fuel pump sub harness SP (Black)
connector.
3. Start the engine, and let it idle until the engine stalls.