ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE) 6-1-97
DTC P0174 Fuel System Too Lean (Bank-2)
DTC P0175 Fuel System Too Rich (Bank-2)
DTC DETECTING CONDITION AND TROUBLE AREA
DTC CONFIRMATION PROCEDURE
• Intake air temperature : between –14°C and 70°C (6.8°F and 158°F)
• Atmospheric pressure : higher than 560 mmHg (Altitude : lower than 2790 m (9150 ft))
• Following DTCs are not detected : P0130, P0133 and P0134 (No.13)
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) Operate vehicle within freeze frame data condition as noted for 5 min.
5) Stop vehicle and check DTC and pending DTC by using scan tool.
DTC TROUBLESHOOTING
DTC DETECTING CONDITION
TROUBLE AREA
P0174
Total fuel trim of BANK-2 is higher than 33%.
P0175
Total fuel trim of BANK-2 is lower than –33%.
Vacuum leaks
Exhaust gas leakage
Fuel pressure out of specification
Fuel injector malfunction
Heated oxygen sensor malfunction
MAF sensor malfunction
ECT sensor malfunction
Fuel level sensor malfunction
NOTE:
Check to make sure that following conditions are satisfied when using the DTC CONFIRMATION PRO-
CEDURE.
WARNING:
• When performing a road test, select a place where there is no traffic or possibility of a traffic acci-
dent and very careful during to avoid occurrence of an accident.
• Road test, should be carried out with 2 person, a driver and tester, on a level road.
Step
Action
Yes
No
1
Was “Engine Diag. Flow Table” performed?
Go to Step 2.
Go to “Engine Diag. Flow
Table”.
2
Is there DTC(s) other than “P0174” and
“P0175”?
Go to applicable DTC
FLOW TABLE.
Go to Step 3.
3
Check intake system and exhaust system for
leakage.
Are intake system and exhaust system in good
condition?
Go to Step 4.
Repair or replace.
4
Check fuel pressure referring to “Table B-3” in
this section.
Is check result satisfactory?
Go to Step 5.
Repair or replace.
5
Check fuel injectors (No. 2, 4, 6) referring to
“Fuel Injector” in Section 6E2.
Is check result satisfactory?
Go to Step 6.
Faulty injector(s).
Содержание Engine 2002 GRAND VITARA SQ625
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Страница 274: ...ENGINE GENERAL INFORMATION AND DIAGNOSIS H25 ENGINE 6 1 133 Fig and Table for Step 3...
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Страница 360: ...ENGINE MECHANICAL G16 ENGINE 6A1 69 Main Bearings Crankshaft and Cylinder Block COMPONENTS...
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Страница 572: ...ENGINE MECHANICAL J20 ENGINE 6A4 83 Main Bearings Crankshaft and Cylinder Block COMPONENTS...
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Страница 598: ...ENGINE COOLING 6B 7...
Страница 623: ...6B 32 ENGINE COOLING...
Страница 635: ...6E1 4 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES ENGINE AND EMISSION CONTROL SYSTEM DIAGRAM FOR G16 ENGINE...
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Страница 643: ...6E1 12 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES ELECTRONIC CONTROL SYSTEM COMPONENT LOCATION FOR G16 ENGINE...
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Страница 693: ...6E1 62 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES...
Страница 697: ...6E2 4 ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE ENGINE AND EMISSION CONTROL SYSTEM DIAGRAM...
Страница 743: ...6E2 50 ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE...
Страница 814: ...CHARGING SYSTEM 6H 21 Disassembly 70 A and 80 A types...
Страница 827: ...6H 34 CHARGING SYSTEM...
Страница 833: ...6K 6 EXHAUST SYSTEM...
Страница 834: ...Prepared by 1st Ed Dec 2002 Printed in Japan 824...