LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mitsubishi >> 1994 >> Precis Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Engine Controls - Specifications) >> Mechanical Checks >> Engine Compression
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Compression

WARNING: This page is about a different car, the 1994 Mitsubishi Diamante. However, it is still accessible from the selected car via links, so may be relevant.

Check engine compression with engine at normal operating temperature, all spark plugs removed and throttle wide open.

COMPRESSION SPECIFICATIONS

Application (1) Specification
Compression Ratio
3.0L (VIN J) 10.0:1
3.0L (VIN H) 10.0:1
Compression Pressure
3.0L (VIN J) 185 psi (13.0 kg/cm2 )
3.0L (VIN H) 196 psi (13.8 kg/cm2 )
Maximum Variation Between Cylinders 14 psi (1.0 kg/cm2 )
(1) See ENGINE/VIN ID article.