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DTC codes / Chrysler codes / P1441

P1441 · ChryslerEvaporative Emission (EVAP) System Flow During Non-Purge

P1441 on a Chrysler vehicle means the powertrain control module detected fuel vapor flowing through the evaporative emission (EVAP) system when the purge solenoid was commanded closed. The computer watches the fuel tank pressure and leak detection circuits during a key-off or non-purge window and flags the code when pressure changes indicate an unexpected flow path.

SystemPowertrain
Code typeChrysler specific
SeverityLow
Fix difficultyIntermediate
AreaAuxiliary emission controls

Symptoms you may notice

  • Often no symptoms besides the warning light
  • A faint fuel odor around the rear of the vehicle after parking
  • Slightly rough idle or a stumble just after refueling
  • Fuel cap or EVAP system warning message on the dash
  • Intermittent check engine light that clears and returns after a few drive cycles

Common causes, most likely first

  1. Purge solenoid stuck open or leaking internally, allowing manifold vacuum to pull vapor when it should be sealed
  2. Leaking or misrouted EVAP hose between the purge solenoid and the fuel tank
  3. Fuel tank pressure sensor reading drift or a skewed signal
  4. Leak detection pump or natural vacuum leak detection module fault
  5. Fuel filler cap not sealing or aftermarket cap with the wrong pressure rating
  6. Cracked EVAP canister or a canister purge port that does not seal
  7. Wiring or connector corrosion at the purge solenoid or tank pressure sensor

How to diagnose and fix it

  1. Inspect the fuel filler cap and EVAP hoses for cracks, looseness, or obvious routing problems
  2. Command the purge solenoid closed with a scan tool and watch fuel tank pressure for movement that should not occur
  3. Disconnect the purge solenoid and check for vacuum passing through it when de-energized
  4. Test the purge solenoid coil resistance and verify power and ground at the connector
  5. Compare fuel tank pressure sensor voltage to a known-good value or a mechanical gauge
  6. Smoke-test the EVAP system with the purge solenoid commanded closed to locate the flow path
  7. Replace the failed purge solenoid, leak detection pump, or sensor only after the flow is confirmed

What a stuck-open purge valve hides

  • A purge solenoid that leaks only when cold or under light vacuum can pass a static bench test and still set P1441 on a cold start.
  • Technicians often replace the fuel tank pressure sensor when the real fault is a canister that will not seal, so always smoke-test before parts swapping.
  • A missing or wrong-style aftermarket fuel cap is a common cause on Chrysler vehicles and can mimic a failed leak detection pump.
  • P1441 can appear after a fuel tank replacement or EVAP hose repair where a line was pinched or connected to the wrong port.
  • The code may set only during a key-off natural vacuum test, so a short test drive will not always reproduce it.

Can I keep driving with P1441?

The vehicle is safe to drive with P1441 because it is an emissions flow fault and does not affect braking, steering, or engine power. Avoid topping off the fuel tank past the first click and have the EVAP system checked soon, since a stuck-open purge valve can eventually cause a rough idle or a fuel smell.

Tools that help

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Guidance is general and written for Chrysler vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage