ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE) 6-1-37
Engine hesitates
(Momentary lack of
response as the
accelerator is
depressed. Can
occur at all vehicle
speeds. Usually
most severe when
first trying to make
the vehicle move,
as from a stop
sign.)
Ignition System out of order.
• Spark plug faulty or plug gap as out of
adjustment
“Spark Plugs” in Section 6F2.
Fuel system out of order.
• Fuel pressure out of specification
– Clogged fuel filter
– Faulty fuel pressure regulator
“Diag. Flow Table B-3” in this section.
• Clogged fuel filter, hose or pipe
Engine overheating
Refer to “Overheating” in this table.
Engine and emission control system out of
order.
• Faulty EGR system
“DTC P0440 Diag. Flow Table” in this sec-
tion.
• Faulty injector
“Fuel Injector” in Section 6E2.
• Faulty TP sensor, ECT sensor or MAF
sensor
“TP Sensor”, “ECT Sensor” or “MAF Sen-
sor” in Section 6E2.
• Faulty ECM (PCM)
“Inspection of ECM (PCM) and Its Circuit” in
this section.
Low compression
Previously outlined.
Surges
(Engine power
variation under
steady throttle or
cruise. Feels like
the vehicle speeds
up and down with
no change in the
accelerator pedal.)
Ignition system out of order.
• Defective spark plug (excess carbon
deposits, improper gap, and burned
electrodes, etc.)
“Spark Plugs” in Section 6F2.
Fuel system out of order.
• Variable fuel pressure
– Clogged fuel filter
– Kinky or damaged fuel hose and line
– Faulty fuel pressure regulator
“Diag. Flow Table B-3” in this section.
Engine and emission control system out of
order.
• Faulty EGR system
“DTC P0400 Diag. Flow Table” in this sec-
tion.
• Faulty MAF sensor
“MAF Sensor” in Section 6E2.
• Faulty injector
“Fuel Injector” in Section 6E2.
• Faulty ECM (PCM)
“Inspection of ECM (PCM) and Its Circuit” in
this section.
Condition
Possible Cause
Correction
Содержание Engine 2002 GRAND VITARA SQ625
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Страница 248: ...ENGINE GENERAL INFORMATION AND DIAGNOSIS H25 ENGINE 6 1 107 Fig for Step 4...
Страница 274: ...ENGINE GENERAL INFORMATION AND DIAGNOSIS H25 ENGINE 6 1 133 Fig and Table for Step 3...
Страница 291: ...6 1 150 ENGINE GENERAL INFORMATION AND DIAGNOSIS H25 ENGINE...
Страница 360: ...ENGINE MECHANICAL G16 ENGINE 6A1 69 Main Bearings Crankshaft and Cylinder Block COMPONENTS...
Страница 489: ...6A2 114 ENGINE MECHANICAL H25 ENGINE...
Страница 572: ...ENGINE MECHANICAL J20 ENGINE 6A4 83 Main Bearings Crankshaft and Cylinder Block COMPONENTS...
Страница 591: ...6A4 102 ENGINE MECHANICAL J20 ENGINE...
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...
Страница 637: ...6E1 6 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES ENGINE AND EMISSION CONTROL SYSTEM DIAGRAM FOR J20 ENGINE...
Страница 643: ...6E1 12 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES ELECTRONIC CONTROL SYSTEM COMPONENT LOCATION FOR G16 ENGINE...
Страница 645: ...6E1 14 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES ELECTRONIC CONTROL SYSTEM COMPONENT LOCATION FOR J20 ENGINE...
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...