Suzuki Baleno Manual page 1303

INSPECTION
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 Is there DTC other than Fuel system (DTC P0171 / P0172) and
misfire (DTC P0300-P0304)?
3 Check Ignition System.
1) Remove spark plugs and check them for;
D Air gap: 1.0 – 1.1 mm (0.040 – 0.043 in.) See Fig. 1.
D Carbon deposits
D Insulator damage
D Plug type
If abnormality is found, adjust, clean or replace.
2) Disconnect all injector connectors. See Fig. 2.
3) Connect spark plugs to high tension cords and then ground
spark plugs.
4) Crank engine and check that each spark plug sparks.
Are above check results satisfactory?
4 Check Fuel Pressure (Refer to Section 6E2 for details).
1) Release fuel pressure from fuel feed line.
2) Install fuel pressure gauge. See Fig. 3.
3) Check fuel pressure.
With fuel pump operating
and engine at stop
At specified idle speed
Is measured value as specified?
5 Check Fuel Injectors and Circuit.
1) Using sound scope (1) or such, check operating sound of
each injector (2) when engine is running. Cycle of operating
sound should very according to engine speed.
See Fig 4.
If no sound or an unusual sound is heard, check injector cir-
cuit (wire or coupler) or injector.
2) Turn ignition switch OFF and disconnect a fuel injector con-
nector.
3) Check for proper connection to fuel injector at each terminal.
See Fig. 5.
4) If OK, then check injector resistance.
Injector Resistance: 12 – 13 ohm at 20_C (68_F)
5) Carry out steps 1) and 3) on each injector.
6) Check each injector for injected fuel volume referring to Sec-
tion 6E2. See Fig. 6.
Injected Fuel Volume: 38 – 48 cc/15 sec (G13)
7) Check each injector for fuel leakage after injector closed.
Fuel Leakage: Less than 1 drop / min.
Is check result in step 1) and 3) to 7) satisfactory?
ENGINE GENERAL INFORMATION AND DIAGNOSIS (G13/G16 ENGINE WITH WU TWC) 6-1-73
ACTION
: 270 – 310 kPa, 2.7 – 3.1 kg/cm
38.4 – 44.0 psi.
: 200 – 240 kPa, 2.7 – 3.1 kg/cm
28.4 – 34.1 psi.
44 – 54 cc/15 sec (G16)
YES
Go to Step 2.
Go to applicable
DTC Diag. Flow
Table.
Go to Step 4.
Go to Step 5.
2
,
2
,
Go to Step 6.
NO
Go to "ENGINE
DIAG. FLOW
TABLE".
Go to Step 3.
Check ignition
system parts
(Refer to Section
6F1).
Go to Diag. Flow
Table B-3 fuel
pressure check.
Check injector
circuit or replace
fuel injector(s).