YH4
GRAND
VITARA
ENGINE (H25 ENGINE)
6-1-81
D
Intake air temperature: between – 14
_
C and 70
_
C (6.8
_
F and 158
_
F)
D
Atmospheric pressure: higher than 560 mmHg (Altitude: lower than 2790 m (9150 ft))
D
Following DTCs are not detected: P0110 (No.23, 25), P0335, P0460, P01450 and P01451
(1) With ignition switch OFF, connect scan tool.
(2) Turn ON ignition switch and clear DTC by using scan tool if any.
(3) Start engine and warm up to normal operating temperature.
(4) Increase vehicle speed to 56 km / h (35 mph) or more.
(5) Keep above vehicle speed for 5 min. (Throttle valve operating is kept constant in this step.)
(6) Increase vehicle speed to 80 – 100 km / h (50 – 60 mph). (engine speed; 2500 – 3000 r / min.)
(7) Keep above vehicle speed for 1 min. (Throttle valve operating is kept constant in this step.)
(8) Release accelerator pedal and with engine brake applied, keep vehicle coasting and then stop vehicle.
(9) Check DTC and pending DTC by using scan tool.
DTC TROUBLESHOOTING
STEP
ACTION
YES
NO
1
Was “ENGINE DIAG. FLOW TABLE” performed?
Go to Step 2.
Go to “ENGINE
DIAG. FLOW
TABLE”.
2
HO2S Voltage check:
(1) With ignition switch OFF, install scan tool.
(2) Start engine and check “O2S B2 S2” (HO2S
voltage) displayed on scan tool while repeating
racing engine.
Does the voltage deflect between 0 – 0.25 V and
0.35 – 2.0 V?
Intermittent trouble.
If OK, substitute a
known-good ECM
(PCM) and recheck.
Go to Step 3.
3
Wire Harness check:
(1) Check “R / Y” and “Gr / Y” wire.
Are they in good condition?
Go to Step 4.
Repair or replace.
4
Fuel Injector Circuit check:
(1) Check fuel injector circuit referring to “TABLE B-2”
in this section.
Is it in good condition?
Go to Step 5.
Repair or replace.
5
Fuel Injector inspection:
(1) Inspect fuel injectors (No.2, 4, 6) referring to
“ENGINE AND EMISSION CONTROL” section.
Are they in good condition?
Go to Step 6.
Faulty fuel injector(s).
6
Fuel Pressure inspection:
(1) Check fuel pressure referring to following “TABLE
B-3” in this section.
Is fuel pressure within specification?
Replace HO2S and
recheck.
If DTC P0156
detected, substitute a
known-good ECM
(PCM) and recheck.
Repair or replace.
Содержание 2000 Grand Vitara SQ416
Страница 75: ...ENGINE DIAGNOSIS G16 J20 ENGINES 6 71 Fig 1 for Step 3...
Страница 179: ...6 1 68 ENGINE H25 ENGINE a Fig for STEP 2 3 a HO2S heater relay...
Страница 190: ...ENGINE H25 ENGINE 6 1 79 a Fig for STEP 2 3 a HO2S heater relay...
Страница 205: ...6 1 94 ENGINE H25 ENGINE Fig for STEP 4 1 Disconnected CMP sensor coupler 2 BI B wire terminal 3 Gr Y wire terminal...
Страница 541: ...6E1 4 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES G16 ENGINE...
Страница 542: ...ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES 6E1 5...
Страница 543: ...6E1 6 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES J20 ENGINE...
Страница 544: ...ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES 6E1 7...
Страница 549: ...Or W Bl G Bl Y C51 1 22 C51 1 23 C51 1 10 C51 1 11 6E1 12 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES...
Страница 552: ...ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES 6E1 15...
Страница 592: ...6E2 4 ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE...
Страница 593: ...ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE 6E2 5...
Страница 597: ...ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE 6E2 9...
Страница 661: ...IGNITION SYSTEM FOR J20 H25 ENGINES 6F2 13 INSTALLATION For installation reverse removal procedure...
Страница 723: ...6H 30 CHARGING SYSTEM 17 Make sure that rotor turns smoothly...
Страница 729: ...Prepared by Overseas Service Department 1st Ed April 2000 Printed in Japan Printing April 2000 736...