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International Automotive Technicians Network
Re: relative compression test
Posted to Technical Discussion Forum on 7/27/2011

You could pump the fuel pump relay and let it run till it is out of fuel pressur in the line... then sync #1 and scope starter draw. Gotta make sure it isn't getting anymore fuel though from stuff in the rail dripping in.

For a quicker dirtier method I've un... Login to read more.