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U1800 Diagnostic Trouble Code Discussion for February 2011

Lost Communication With Fuel Injector Control Module

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Trouble Ticket Help Requests for DTC U1800
Help Request Posted
2003 GMC Sierra 2500 HD 6.6L No Start VIN: 1GDHK24193
... Cut out on road, will not restart, towed into shop. Diagnosis using snap on Modis scanner found MAF G/sec above 2.2 with engine off key on. Removed air filter, Filter Minder showed solid red, removed filter attempted to start. Still no restart. Cleaned MA...
February 10, 2011