I own a 2000 Nissan Frontier crew cab with a 3.3L gasoline engine (no turbo). When I perform diagnostic testing, the vehicle shows multiple trouble codes: P0455, P0325, P0340, P017
Thank you for the detailed advice! We will perform the fuel pressure test and check the sensors tomorrow. Appreciate your help. I'm still unsure whether it has a turbocharger, so my husband is reviewing the vehicle specs right now.
Apologies — I made an error earlier. The code was actually P0340, not P0240. Corrected in the original post.
P0340 makes sense — this is a classic camshaft position sensor issue on the 2000 Nissan Frontier. Have you inspected or worked near the distributor? The camshaft sensor is located close to it, and any wiring damage or loose connections could cause intermittent starting problems. To troubleshoot effectively: - Conduct a fuel pressure test under KOEO conditions to rule out fuel system leaks. - Check for vacuum leaks that may contribute to lean mixtures (P0171). - Ensure the truck is stock — no modified air filters, performance parts, or aftermarket components that could affect sensor readings or engine behavior.
Confirm this is a 2000 Nissan Frontier 3.3L gasoline engine without turbocharging. I recommend using a second OBD-II scanner to verify the codes, as accuracy matters. Based on your description — the truck starts immediately after turning off the ignition and only fails to start after sitting for minutes — this points toward potential fuel system issues. Specifically: - DTC P0171 (Fuel Injection System Lean) indicates a lean air-fuel mixture, possibly due to vacuum leaks or faulty sensors. - DTC P0325 refers to a knock sensor fault, which may affect engine timing and cause misfires. - DTC P0340 points to a camshaft position sensor failure — common in this model and likely contributing to the starting delay. - DTC P0455 indicates an evaporative emissions system gross leak, which can trigger check engine light and affect fuel efficiency. - DTC P1448 suggests the EVAP canister vent control is open, possibly due to a faulty solenoid or valve. Next steps: Perform a fuel pressure test under KOEO (Key On, Engine Off) conditions to check for leaks. Also inspect the distributor and associated wiring, as these components are near the camshaft sensor area. Ensure no aftermarket modifications like air filters, magnets, or thermostat changes have been made — these can interfere with diagnostics.