Can high fuel pressure cause high idle?
Can high fuel pressure cause high idle?
Can a bad fuel pressure regulator cause high idle? Common causes of high fuel pressure include a bad fuel regulator or a clogged return line. The second test requires you to allow the engine to idle; while disconnecting the vacuum hose on the fuel pressure regulator for vehicles that are so equipped.
What should the PSI be on a Detroit 60 series engine?
1200-1300, you should have 30-45 psi 1800-2100, you should have 65-80 psi If the fuel pressure is high, I would suspect a plugged fuel filters or faulty fuel pressure regulator. If the guage is really bouncy, and unstable, especially under boost, then compression could be leaking past the injector o-rings.
How to test Detroit Diesel high fuel pressure?
Start and run the engine. Run the engine at idle with a no-load for approximately 5 minutes, allowing the engine coolant to reach normal operating range. Test drive the vehicle to ensure lack of power has been resolved. If no lack of power occurred during the test drive, no further troubleshooting is required. Shut down the engine.
What causes cylinder cut out on Detroit Diesel?
When I use Detroit Diesel for a cylinder cut out, you look at the baseline pulse width, and if any injector goes below the baseline, it could be 1 of two things, air in the fuel, low fuel pressure, faulty injector. None of these symptoms could cause a fault code.
What to do if a Detroit Diesel cylinder misfire?
To determine if a faulty electronic control module (ECM) is causing the cylinder to misfire, perform the following: Note: Carefully disengage the lock tab… To determine if a faulty fuel injector is causing the cylinder to misfire, perform the following steps: Install DDL adaptor to the data cable…
1200-1300, you should have 30-45 psi 1800-2100, you should have 65-80 psi If the fuel pressure is high, I would suspect a plugged fuel filters or faulty fuel pressure regulator. If the guage is really bouncy, and unstable, especially under boost, then compression could be leaking past the injector o-rings.
When I use Detroit Diesel for a cylinder cut out, you look at the baseline pulse width, and if any injector goes below the baseline, it could be 1 of two things, air in the fuel, low fuel pressure, faulty injector. None of these symptoms could cause a fault code.
Start and run the engine. Run the engine at idle with a no-load for approximately 5 minutes, allowing the engine coolant to reach normal operating range. Test drive the vehicle to ensure lack of power has been resolved. If no lack of power occurred during the test drive, no further troubleshooting is required. Shut down the engine.
What causes a power loss on a 60 series engine?
If the fuel pressure is high, I would suspect a plugged fuel filters or faulty fuel pressure regulator. If the guage is really bouncy, and unstable, especially under boost, then compression could be leaking past the injector o-rings. Or air is getting in the fuel somehow. Which you eliminated the suction line by going straight to the fuel tank.
