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92 Coupe DeVill, 4.9
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I have 92 Coupe DeVill, 4.9. The "Service Engine Soon" light is on. I suspect an 02 sensor. The few garages I've called said they don't have the equipment to read the code message. Is there a special hook-up I can show them? Should I just keep seeking out garage that has the right type? Any advice is appreciated.
 
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