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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
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