Suzuki Grand Vitara 2011 Manual page 322

1A-253 Engine General Information and Diagnosis: For Petrol Engine Model
Step
5 Fuel line check
1) Check fuel pipe, fuel hose and joint for damage or
deform.
Are they in good condition?
6 Was fuel pressure higher than specification in Step 2?
7 Fuel line check
1) Check fuel pipe, fuel hose and joint for damage or
deform.
Are they in good condition?
8 Fuel line check
1) Check fuel pipe, fuel hose and joint for damage or
deform.
Are they in good condition?
Action Yes
Faulty fuel pressure
regulator.
Go to Step 7.
Faulty fuel pressure
regulator.
Clogged fuel filter, faulty
fuel pump, faulty fuel
pressure regulator or
fuel leakage from hose
connection in fuel tank.
No
Repair or replace
damaged or damaged
part.
Go to Step 8.
Repair or replace
damaged or damaged
part.
Repair or replace
defective part.