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Clean out the fuel injector and observe if it can work correctly.
No Replace the fuel injector Yes Replace fuel 12 Check if fuel is bad or moisture. No 18 Yes Next step 13 Check if the fuel pressure value is below 400 kPa.
No 17 Yes Next step 14 Close the fuel manometer valve. Re-engage the ignition switch to let the fuel pump run for a period of time, and then check if fuel pressure can be built up. No 16 Yes Check other part 15 Open the valve of fuel gauge and clamp the oil return pipe by oil return baffle so that the oil can not return. Check if the oil pressure occurs immediately. No Repair or replace the fuel pump Yes Repair or replace oil intake pipe 16 Check if there is leakage or jam in oil intake pipe.
No Replace oil pump Yes Repair or replace oil return pipe 17 Check if the oil return pipe is bended or jammed. No Replace fuel pressure regulator Yes Repair or replace the harness 18 Check if it is break or short circuit between 1#, 2# pins of crankshaft position sensor and 34#, 15# pins of ECU. No Next step Yes Repair 19 Check if the part of air intake system is leaking.
No Next step Yes Repair or replace 20 Check if air flow meter works normally.
No Next step Yes Next step 21 Check if the coolant temperature sensor is working correctly.
No Repair or replace Yes Remove the mechanical failure 22 Check if the reason for the failure on starting is about mechanism, such as much cylinder clearance, cylinder leaking, and so on. No Replace ECU
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