Compression Check: Testing and Inspection

Test conditions
- Engine oil temperature at least 30°C
- Battery fully charged
- Disconnect harness connectors from all 6 fuel injectors.
- Disconnect 5-pin harness connector from power output stage of ignition coils.
- Open throttle fully.
- Use VAG1381 or VAG1763 compression tester to check compression.
- Operate starter until no further pressure increases are indicated by VAG1381 or VAG1763 compression tester.





Compression pressure