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(2). When starting, the engine can be towed but cannot start successfully.
General fault parts:1, fuel tank without oil; 2, fuel pump; 3, speed sensor; 4, ignition coil; 5, engine mechanical parts.
General diagnosis process:
No.
Inspection steps
Follow steps
1
Connect the OBD diagnostic, observe the data items of the engine speed, start
engine, and observe whether there is a speed signal output.
Inspect speed sensor
circuit and speed sensor
2
Remove the spark plug cap, connect the spark plug, let the spark plug on the
engine block, start the engine, check whether there was continuous blue and
white high pressure fire.
Inspect ignition system
3
Connect the fuel pressure gauge, turn on the key switch and check whether the
fuel pressure was around 250KPa. If there was no fuel pressure gauge, can pinch
the high pressure oil pipe by hand, judge the hardness.
Inspect fuel system
4
Check the pressure of the engine cylinder and observe whether there is
insufficient pressure in the engine cylinder.
Exclude engine
mechanical failure (pay
attention to check
whether engine valve
clearance is too small).
Summary of Contents for GP125i
Page 1: ......
Page 2: ......
Page 20: ...19 5 Oil seal punch Z07 1 Z07 9 6 Flywheel extractor Z04 7 Spark plug sleeve Z05 ...
Page 22: ...21 2 Tool case 1 3 Tool case 2 4 Spring pliers ...
Page 23: ...22 5 Screwdriver 6 Pliers 7 Nylon hammer 8 Multimeter ...
Page 29: ...28 2 Remove the spark plug suppressor cap shown no 3 ...
Page 51: ...50 ELECTRICAL SYSTEM Components arrangement ...
Page 52: ...51 ...
Page 54: ...53 Instrument Panel Indications 1 Engine RPM Indicator 2 Fuel gauge ...
Page 56: ...55 Harness diagram ...
Page 57: ...56 ...
Page 58: ...57 Conceptual diagram ...
Page 61: ...60 ...
Page 66: ...65 ...
Page 69: ...68 4 Remove the screw shown no 9 two bolts shown no 8 and remove the air filter ...
Page 74: ...73 ...
Page 115: ...114 2 Tap left crankshaft with nylon hammer remove crankshaft ...
Page 118: ...117 EFI SYSTEM The vehicle uses the DELPHI MT05 EFI system The schematic diagram as follows ...
Page 143: ...142 ...
Page 145: ...144 ...
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