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Home >> Infiniti >> 1992 >> Q45 Base >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Specifications >> Mechanical Checks >> Engine Compression >> Notes
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Engine Compression: Notes

Check engine compression at normal operating temperature at specified cranking speed. Release fuel pressure, and disconnect coil wire at distributor. Remove all spark plugs, and hold throttle wide open.

NOTE: On Q45, remove air duct and harness connector bracket from left bank. Also remove ornament cover from cylinder head to access ignition coil and spark plug wires.
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