Checking Compression
Checking compression
Checking compression
- Ignition off.
- Disconnect the engine speed (RPM) sensor.
- Disconnect the camshaft position (CMP) sensor.
- Remove spark plug.
- Carry out a compression test at wide open throttle (WOT) and turn the starter motor.
Normal value 1.3 - 1.5 MPa (13 - 15 kp/cm2) with engine at operating temperature
Is compression OK?
Yes - Checking EGR system.
No Fault Found
No - Repair as necessary - Engine repairs
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Engine repairs
- Carry out necessary repairs.
Select "Continue" when the fault has been repaired.
Continue - Verification
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Verification
Hint: After carrying out the repair check that the fault has been remedied. Carry out the following:
- Ignition off.
- Disconnect the engine speed (RPM) sensor.
- Disconnect the camshaft position (CMP) sensor.
- Remove spark plug.
- Carry out a compression test at wide open throttle (WOT) and turn the starter motor.
Normal value 1.3 - 1.5 MPa (13 - 15 kp/cm2) with engine at operating temperature
Is compression OK?
Yes - FAULT FOUND
No - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
The fault should be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.
Do you want to terminate fault-tracing at this time?
Yes - Exit fault-tracing
No - Attempt New Test
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Attempt New Test - Checking compression
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