Suzuki WagonR+ RB310 Service Manual page 726

Step
4 Fuel Line Check
1) Check fuel pipe, fuel hose and joint for damage or
deform.
Are they in good condition?
5 Was fuel pressure higher than specification in Step 1? Go to Step 6.
6 Fuel Line Check
1) Check fuel pipe, fuel hose and joint for damage or
deform.
Are they in good condition?
7 Fuel Pump Operating Sound Check
1) Remove fuel filler cap and then turn ON ignition
switch.
Can you hear operation sound?
8 Fuel Line Check
1) Check fuel pipe, fuel hose and joint for damage or
deform.
Are they in good condition?
ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-155
Action Yes
Faulty fuel pressure reg-
ulator.
Faulty fuel pressure reg-
ulator.
Go to Step 8.
Clogged fuel filter, faulty
fuel pump, faulty fuel
pressure regulator or
fuel leakage from hose
connection in fuel tank.
No
Repair or replace.
Go to Step 7.
Repair or replace.
Faulty fuel pump.
Repair or replace.