EVAP
Anyone have specific ways to troubleshoot EVAP system on my 2003 350z?
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There's no need to start multiple threads for the same problem.
Did you look through any of these on the P0442 error? https://my350z.com/forum/maintenance...ode-p0442.html https://my350z.com/forum/maintenance...oon-light.html https://my350z.com/forum/maintenance...leak-help.html https://my350z.com/forum/maintenance...stic-code.html https://my350z.com/forum/maintenance...ine-light.html https://my350z.com/forum/maintenance...s-came-on.html https://my350z.com/forum/engine-and-...-confused.html https://my350z.com/forum/maintenance...182-codes.html https://my350z.com/forum/engine-and-...1767-help.html https://my350z.com/forum/maintenance...t-came-on.html https://my350z.com/forum/maintenance...that-mean.html https://my350z.com/forum/engine-and-...-ses-code.html It also never hurts to dig up a copy of the Factory Service Manual. It has complete diagnostics listed as well as a general list of possible causes: Incorrect fuel tank vacuum relief valve Incorrect fuel filler cap used Fuel filler cap remains open or fails to close. Foreign matter caught in fuel filler cap. Leak is in line between intake manifold and EVAP canister purge volume control solenoid valve. Foreign matter caught in EVAP canister vent control valve. EVAP canister or fuel tank leaks EVAP purge line (pipe and rubber tube) leaks EVAP purge line rubber tube bent Loose or disconnected rubber tube EVAP canister vent control valve and the circuit EVAP canister purge volume control solenoid valve and the circuit Fuel tank temperature sensor O-ring of EVAP canister vent control valve is missing or damaged EVAP canister is saturated with water EVAP control system pressure sensor Fuel level sensor and the circuit Refueling EVAP vapor cut valve ORVR system leaks As you can see, there's no one simple fix. |
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