SEAL-O-RING 4935233 - Caterpillar

Table 3
Minimum     Maximum     Default    
0     6.550     "Not Programmed"    "Vehicle Speed Limit (VSL)"
The "Vehicle Speed Limit" (VSL) is the maximum vehicle speed that is allowed by the ECM. The ECM will shut off fuel above this speed. An inexperienced driver may think that something is wrong with the engine because the ECM will not fuel the engine above this vehicle speed limit. Vehicle speed limiting allows the implementation of a gear fast/run slow specification for the truck. The gear fast/run slow specification for the truck improves fuel economy while the parameter for the vehicle speed limit limits the maximum vehicle speed of the truck.
Table 4
Manufacturer     Minimum     Maximum     Default    
GM    
48 km/h (30 mph)    
121 km/h (75 mph)    
121 km/h (75 mph)    
Other    
48 km/h (30 mph)    
204 km/h (127 mph)    
204 km/h (127 mph)    "VSL Protection"
The "VSL Protection" is the maximum engine rpm when there is a problem with the vehicle speed signal that is detected by the ECM. The ECM limits the engine to this engine rpm when the ECM senses no vehicle speed signal, and a load on the engine. This is a feature that is used to prevent tampering by running without a Vehicle Speed input to the ECM.Note: When this parameter is programmed to the TEL rpm, the ECM disables 84-01 Loss Of Vehicle Speed Signal (31) and 84-10 Vehicle Speed Rate of Change (36) and the "VSL Protection" may be exceeded by disconnecting the vehicle speed sensor.
Table 5
Manufacturer     Minimum     Maximum     Default    
GM     "1700 rpm"     "1700 rpm"     "1700 rpm"    
Other     1700 rpm     TEL rpm     TEL rpm    "Tachometer Calibration"
The "Tachometer Calibration" is used by the ECM to translate the engine speed signal into revolutions per minute for a tachometer. The "Tachometer Calibration" is programmed in pulses per revolution (PPR). The programmable range is from 2.0 to 500.0 in increments of 0.1 PPR.
Table 6
Manufacturer     Minimum     Maximum     Default    
GM     2.0 PPR     500.0 PPR     17.5 PPR    
Other     2.0 PPR     500.0 PPR     134.0 PPR    "Soft Vehicle Speed Limit"
The "Soft Vehicle Speed Limit" operates in conjunction with the "Vehicle Speed Limit". The "Soft Vehicle Speed Limit" limits the vehicle speed within the following range:
The minimum value is 4 km/h (2.5 mph) below the programmed "Vehicle Speed Limit" at full load.
The maximum value is 4 km/h (2.5 mph) above the selected "Vehicle Speed Limit" at no load.
Table 7
Manufacturer     Alternative     Default    
All Applications     "NO"     "YES"    "Low Speed Range Axle Ratio"
MAR98 and newer Personality Modules.The "Low Speed Range Axle Ratio" parameter must be programmed when an on/off switch for the two-speed axle is used by the ECM to adjust the vehicle speed calibration. When a two-speed axle is used, the change in gear