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Hi Pete,
i have washed off my engine several times with a hose and I have had no problems. The check engine light has not come on.
I have not sprayed directly on electric connections. Mainly the injectors, coils, and ignition wires. I also avoid the altenator. After I spray the engine to wash off the winter road salt I blow it off a shop vac. An air compressor would be better or a leaf blower but I do not own one. I usually do this on a low humidity day and then let the car dry for about a half hour before starting.
I also own a 91 Legacy (167k) and a 97 OBS (154k), both are the 2.2 engine. Cont'd later.......
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