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Home >> Mazda >> 1982 >> RX7 2RTR-1146cc 70 >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Service Precautions >> Vehicle Damage Warnings >> Engine And Exhaust >> Compression Testing
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Compression Testing

- When performing a compression test--on fuel injected vehicles--remove the fuel pump relay fuse, and disconnect power to the ignition to stop fuel flow to the injectors and prevent engine from starting.