What are the steps for testing automotive fuel pressure?
1 Answers
First, remove the fuel pump fuse, relay, or fuel pump plug, then start the engine. After the engine stalls, restart it 2-3 times, and disconnect the negative terminal of the battery. Connect the fuel pressure gauge in series to the fuel inlet pipe. For vehicles with a pressure test port, connect the fuel pressure gauge to the test port. Place a towel under the connection when removing fuel pipes. Test static fuel pressure, idle fuel pressure, maximum fuel pressure, and residual fuel pressure.