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Tank venting and fuel vapours

P0443 Fault in the purge valve wiring

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P0443 means: Fault in the purge valve wiring. The purge valve lets fuel vapours into the engine to be burned. OK to drive, but have it checked soon. The repair usually costs about €40–200 in Estonia. The most common cause: purge valve has failed or is stuck.

Is it safe to drive?OK to driveOK to drive, but have it checked soon.
Typical repair cost€40–200parts and labour in Estonia

What it means

The purge valve lets fuel vapours into the engine to be burned. The engine computer can't control the valve properly.

What could be wrong

  1. 1Purge valve has failed or is stuck
  2. 2Valve connector or wire
  3. 3Hose is disconnected

What you can check yourself

Check the valve connector and hoses. If the valve sticks open, the car may start poorly after refuelling. You can do the simpler checks yourself.

How we fix it

  1. We check the valve with a diagnostic tool
  2. We repair the wire or hose
  3. We replace the valve

Standard SAE description: EVAP System Purge Control Valve Circuit

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.

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Questions

What does fault code P0443 mean?

Fault in the purge valve wiring. The purge valve lets fuel vapours into the engine to be burned. The engine computer can't control the valve properly.

Can I drive with code P0443?

OK to drive, but have it checked soon.

How much does it cost to fix P0443?

Roughly €40–200 in Estonia. The price depends on exactly what has failed and on the car.

How is P0443 fixed?

We check the valve with a diagnostic tool. We repair the wire or hose. We replace the valve.

Related codes

P0440Fault in the fuel vapour (EVAP) systemP0441Tank purge not working properlyP0442Small leak in the fuel vapour systemP0446Charcoal canister vent valve not workingP0449Fault in the canister vent valve wiringP0451Tank pressure sensor reads wrongP0455Large leak in the fuel vapour systemP0456Very small leak in the fuel vapour system

Based on AI combined with our hands-on workshop experience and knowledge. This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.

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