Fuel Pressure
- Incorrect setting of the gas pressure regulator
- Faulty gas pressure regulator
Check the Gas Pressure Regulator
Use the Caterpillar Electronic Technician (ET) to observe the absolute fuel pressure and the fuel differential pressure. The fuel metering valve requires a gas supply that is regulated to a pressure between
If the fuel pressure is not within the acceptable range, adjust the gas pressure regulator in order to achieve the correct pressure. Verify that the emissions are within specifications.
If the gas pressure regulator cannot be adjusted to the correct setting, repair the regulator or replace the regulator.
Caterpillar Information System:
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