P0093 Buick Fuel System Large Leak Detected
Possible causes
– Fuel system internal leak
– Fuel supply pump or injector(s)
– Faulty pressure limiter valve
– Faulty fuel pressure sensor
– Fuel supply pump or injector(s)
– Faulty pressure limiter valve
– Faulty fuel pressure sensor
What about the obd code?
Fuel rail pressure lower than expected
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
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