fuel pressure at idle, air to air after cooled 3406, caterpillar diesel engine
To find the idle adjust on a caterpillar 3406 engine refer to the owners manual. If this doesn't help, contact the manufacturer.
Incorrect fuel pressure. Plugged fuel filter.
your gas-wire, connecting the pedal to the fuel injection, is probably broken.
...sounds like you've got a dirty fuel filter. Fuel is delivered fine at idle, but when higher demand is made ( you press down gas pedal, the blockage prevents delivery of fuel.
Acetone is often added to fuel to increase fuel efficiency and create a smoother idle.
A lack of fuel. Can cause your vehicle not to idle. A dirty fuel filter can cause the same problem. The fuel injection pump can also cause your vehicle to not idle properly.
Idle speed control or Idle air control.
You don't. The Idle is controlled by the ECM. There are no idle adjustments
you have a broken air intake hose the large plastic line going to the air filter
does the engine have a carburetor or is it fuel injected? A carbed engine has mixture screws along with a base idle screw, a fuel injected engine the idle is computer controlled.
This depends if it is on a carbureator or on fuel-injection. On a carbureator, locate the idle adjustment screw and turn until idle is satisfactory.
You might need to check the spark plug wires, fuel filter, and check the vacuum hoses.