COVER 7N4928 - Caterpillar

Engine:
3516B (S/N: 7RN1-UP; 2JW1-UP)
Power Module:
PM3516 (S/N: 1HZ1-UP)
Some 3516B Engines generate the following diagnostic code during normal shutdown: 94-11 Fuel Pressure System mechanical failure. Engines that use the 219-4088 Generator Arrangement or the 217-2260 Generator Arrangement have generated the diagnostic code during normal shutdown. The code is generated because the heavier generators require more time than lighter generators to reach 0 RPM during shutdown. The 94-11 diagnostic code is generated under the following circumstances:
Fuel pressure drops below 320 kPa (absolute pressure) for more than 20 seconds.
Engine speed is above 0 RPM.New software is available. The software includes a modification that will eliminate the nuisance 94-11 code.Table 1 identifies the part numbers for the new flash files and the former flash files. The flash files are available in the Service Information System (SIS). Always reference SIS in order to determine the most current software for the particular engine and the rating that is in question.Note: Not all of the engines that are using the former flash files have generated the nuisance 94-11 code.
Table 1
Former Flash File     New Flash File    
251-3195     272-2468    
251-3194     272-2467    
261-7507     272-2466    
261-7506     271-0378    
261-7505     271-0377    
255-9312     271-0375    
255-9311     271-0376    
255-9313     271-0374    
255-9314     271-0373    
251-3193     271-0370    
251-3191     271-0368    
251-3192     271-0369    
251-3189     271-0367    
255-9315     271-0366