Suzuki WagonR+ RB310 Service Manual page 725

6-2-154 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
Table B-3 Fuel Pressure Check
1. Injector
2. Delivery pipe
Troubleshooting
NOTE:
Before using the following table, check to make sure that battery voltage is higher than 11 V. If battery
voltage is low, pressure becomes lower than specification even if fuel pump and line are in good con-
dition.
Step
1 Fuel Pressure Check
1) Check fuel pressure referring to "Fuel Pressure
Inspection" under "Fuel Delivery System" in Sec-
tion 6E2.
Are they satisfied each condition?
2 Fuel Pressure Check
1) Start engine and warm it up to normal operating
temperature.
2) Keep engine speed to 4000 rpm.
Does fuel pressure shows the value which is about the
same as Step 1?
3 Fuel Line Check
1) Check fuel pipe, fuel hose and joint for fuel leak-
age.
Are they in good condition?
3. Fuel filter and fuel pump
A: Gauge
Action
B: Hose
C: 3-way joint
Go to Step 2.
Go to Step 3.
Go to Step 4.
Yes
Go to Step 5.
Go to Step 8.
Repair or replace.
No