Suzuki SY413 Service Manual page 2669

6-1-70 ENGINE GENERAL INFORMATION AND DIAGNOSIS (G13/G16 ENGINE WITH WU TWC)
STEP
8 Check engine coolant temp. sensor for performance
(See Section 6E2).
Is it in good condition?
9 Check intake air temp. sensor for performance
(See Section 6E2).
Is it in good condition?
10 Check throttle position sensor for performance
(See Step 4 of DTC P0121 Diag. Flow Table).
Is it in good condition?
11 Check PCV valve for valve clogging
(See Section 6E2).
Is it in good condition?
Fig.1 for Step 3
Fig.4 for Step 5
ACTION
Fig.2 for Step 4
1. Fuel delivery pipe
2. Fuel feed hose
3. Fuel return pipe
4. Fuel pressure gauge
Fig.5 for Step 5
YES
Go to Step 9.
Go to Step 10.
Go to Step 11.
Substitute a known-
good ECM (PCM) and
recheck.
Fig.3 for Step 5
& 3 way joint
Fig.6 for Step 6
NO
Replace engine cool-
ant temp. sensor.
Replace intake air
temp. sensor.
Replace throttle posi-
tion sensor.
Replace PCV valve.
1. Sound scope
1. Purge hose