What should the pressure be on the fuel rail?
After reassembly, the car would turn over but not fully start. After some research and comparison of live fuel rail pressure before (~1600 psi) and after (~3600 psi) provided by my BlueDriver scan tool I decided to disconnect the fuel rail pressure sensor and it fired right up.
What does 0 psi fuel pressure test mean?
CASE 2: You got 0 psi fuel pressure. This test result lets you know that the fuel pump is defective and is causing the engine to not start. Before you replace the fuel pump, make sure that the fuel pump relay and fuel pump fuse are supplying power to the fuel pump when the engine is being cranked.
What should the fuel pressure be on a flex fuel engine?
Flex fuel engines: 48-54 PSI. These are the test steps: Connect your fuel pressure tester to the Schrader valve. Have your helper crank the engine while you observe the needle on the fuel pressure tester gauge. The fuel pressure tester should give you a reading between 55 to 62 PSI. CASE 1: The fuel pressure is within the indicated specification.
Where is the fuel pump test gauge located?
As I mentioned at the beginning, testing the fuel pump simply involves connecting the fuel pressure test gauge to the fuel system. The fuel pressure test gauge connects to the Schrader valve located on the fuel injector rail (passenger side of the intake manifold).
What should the fuel pressure be on a CPI?
The CPI system’s fuel pressure should be between 60-66 PSI. The manual doesn’t specify if this pressure is key on engine off, only that this pressure should be maintained ‘ under all operating conditions’.
What should the fuel pressure be on a GM 4.3L?
This is where you’ll connect your fuel pressure gauge (the first photo, in the image viewer, is of a 4.3L, and the second of the V8 engine). NOTE: In case you’re wondering, the factory manual specifies that the fuel pressure for the CSFI system should be between 56-62 PSI. The CPI system’s fuel pressure should be between 60-66 PSI.
What should the fuel pump pressure be to start the engine?
The fuel pump produces much more than just 50 PSI of course but the bare minimum the engine needs to start is 50 PSI. Anything less and it will crank for ever before it starts or not start at all. So, the very first thing you need to do is to verify that the fuel pump is delivering at least 50 PSI of fuel pressure while the engine is cranking.
What’s the fuel pressure on a diesel truck?
Thailand Diesel Pickup… by jkates 4213 views 1. FUEL PRESSUREFUEL PRESSURE SPECIFICATIONSSPECIFICATIONS 2.