Cleared obd trouble codes, Engine starts right up, 5 seconds , then shuts down. How do I check the fuel pressure? I thought it would be the fuel pump, now I'm not convinced. Replaced an 02 sensor and a cam location sensor. Any thoughts? Thank you.
First of all, state what engine/transmission is in your vehicle. If you're still getting DTC codes, please post them here on the forum so that we may be able to help you further. To perform a fuel pressure test, tee-in a temporary fuel pressure gauge between the fuel feed hose and the fuel rail. The reading at idle should be around 51 psi.
Here's a fuel pressure testing kit: