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Having driveability problems, stalling, restart , poor gas mileage with 92 940 turbo approx 120,000 mile.I cannot locate the power stage that everyone says goes bad. Do I have one on this vehicle??There is a black thick heavy piece of metal on rear firewall it has no connections other than ground ring on the mount bolt , what is it?? My repair manual doesnt indicate if this model uses power stage. is under dashbord? did previous owner discard it?Have no fault codes in ignition or fuel. I resoldered the aux relay today and replaced the cap and rotor ( cap had oil in it wonder if causes short or poor spark?)
Oh yes, after a successful 50 mile trip with no drivability problems , the water hose by petcock burst , I think the car gave me the finger,
Any help appreciated as always,
Frank D , south florida
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