How to STUDY and repair engine hard starting.

How to Study and repair engine hard starting.

Model: Hyundai Study Santa Fe(SM)

Fuel: Diesel

Year Model: 2003 

Displacement:2000cc

Study subject: Engine hard starting.

1) Condition of Study:

1. The Study is engine hard starting.hesitation and poor acceleration.

2) Cause of Study.

1. Cause of Study is one tooth of the timing belt is jump over.

3) Study Diagnosis.

1. Scan tool check
   
   = Diagnosis trouble code Study.
   = Study code P0340- Camshaft position sensor circuit malfunction.
   
2. Inspect the wiring harness for camshaft position sensor to Study.
   
   = Study check point: Harness side after disconnecting connector.
   =Study check condition: Ignition '”ON”
   = Study power source line: 12 V (Study normal condition).
   = Study ground line:The Study lamp is turned “ON” Using test lamp, Study normal condition.
   = Study signal line: 5 V (Study normal condition)
3. Study inspect the waveform of camshaft position sensor – Study normal wave form.
4. Study check the wave form of the crankshaft position sensor and camshaft position sensor simultaneously.
   =  The Study is Incorrect position of the crankshaft position sensor.
5. The Study is check the engine timing belt.
   = The timing mark is mismatch (Study one tooth is jumped) .

4) Study Repair Guide

1. The Study display on scan.
   = It is necessary tool: “Study CMP sensor malfunction”
   =The Study it is necessary to inspect the timing align including CMP sensor and CKP sensor by oscilloscope meter.
2. This Study problem is occurred by engine hesitation.The Study poor acceleration due to the mismatching of timing belt.
3. Study below is rate problem, But Study refer to this.
   = Timing changes due to the broken dowel pin of camshaft sprocket.

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