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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