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C0561 Diagnostic Trouble Code Discussion for March 2014

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Trouble Ticket Help Requests for DTC C0561
Help Request Posted
2007 Chevrolet Tahoe LTZ 5.3L No Start, Poor Idle Quality, Stall, MIL Lamp on VIN: 1GNFK13017
C0561: system disabled information stored invalid serial data received. ... start, stall then just cranks.Fuel pressure 55psi no theft lights or codes. Replaced gas soaked spark plugs, same no start condition,found if hold W.O.T. vehicle will start and run very rich. Cold KOEO coolant temp 12F, Int air temp 12F,Map 29.2(inHg)baro ...
March 13, 2014