← Back to list

P1451 Diagnostic and Repair Guide for 2002 Ford Taurus SES - EVAP Vent Solenoid Circuit Issue

Model: 2002 Ford Taurus SES Fault Code: P1451 Posted: 2016-05-18 10:49

The check engine light is on with fault code P1451 in my 2002 Ford Taurus SES. This code indicates an EVAP System Vent Control Valve Circuit Malfunction. I've been advised that the issue could stem from one of four components: 1) Gas cap, 2) Evaporative Emission (EVAP) Canister Vent Solenoid, 3) EVAP Purge Solenoid, or 4) EVAP Canister. I have already replaced the gas cap, but the problem persists. I want to confirm whether these three components—the vent solenoid, purge solenoid, and evap canister—are separate parts or part of a single system. If they are distinct, which one should I prioritize replacing? Specifically, can I simply replace just the EVAP Canister Vent Solenoid? And where is the best place to purchase this part? I'm looking for clear guidance on diagnosing and repairing this issue with accurate technical details so I can proceed confidently.

Related fault codes
P1451
Comments (4)
Anonymous 2016-05-18 11:52

P145

Anonymous 2016-05-18 14:26

What does KOEO mean?

Anonymous 2016-05-18 16:24

KOEO stands for Key On, Engine Off. This is the standard test condition used to check electrical signals in the EVAP system when the engine is not running.

Anonymous 2022-06-12 19:07

I couldn't find clear photos online showing the location of this component, so here's a step-by-step guide: I didn't need to lift the car—just crawled under it with socket wrenches. There are two nuts and two bolts of the same size securing the vent solenoid and EVAP canister assembly. Once loosened, you'll see the vent solenoid clearly. The replacement is straightforward and takes only a few minutes. This repair should help others save time when fixing this common issue on the 2002 Ford Taurus SES.