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2000 Camry P0446 Evaporative Emission Control System Vent Control Circuit Malfunction

2000 Camry P0446 Evaporative Emission Control System Vent Control Circuit Malfunction
  • 2684
  • Harry Kennedy
  1. How do you fix an evaporative emission system vent control circuit?
  2. What does evaporative emission system vent control circuit intermittent mean?
  3. What causes code po446?
  4. Can I drive with a P0446 code?
  5. What happens when EVAP solenoid goes bad?
  6. How long can you drive with an EVAP leak?
  7. Where is the EVAP control system located?
  8. Where is the EVAP vent solenoid located?
  9. Can a bad gas cap cause a P0449 code?
  10. What is a code po449?

How do you fix an evaporative emission system vent control circuit?

Gas caps are relatively inexpensive and are often the fix for code P0446. If the fuel cap didn't fix it, perform an EVAP system leak check: Pinch off the vent tube to the EVAP Vent Control Valve. Pressurize the EVAP system with an EVAP smoke machine leak checker.

What does evaporative emission system vent control circuit intermittent mean?

What Does the P0446 Code Mean? Code P0446, otherwise known as Evaporative Emission Control System (EVAP) Vent Control Circuit Malfunction, indicates that your car's computer has detected (or believes it has detected) a problem with the function of the EVAP system vent valve.

What causes code po446?

Code P0446 indicates that there is an improper voltage drop in the EVAP Vent Valve circuit, which can be caused by either too little or too much electrical resistance. This improper electrical condition will cause the vent valve to malfunction.

Can I drive with a P0446 code?

The P0446 code won't put you in any immediate danger. You can still drive your vehicle if you see this code. Other than the check engine light, you may experience reduced fuel economy. While this code may not create life-threatening problems, anything that triggers a check engine light deserves attention.

What happens when EVAP solenoid goes bad?

The canister purge solenoid is the component in the EVAP system that is responsible for “purging” the EVAP system, by acting as the switch that allows the vapor into the engine. When the purge solenoid fails, it will cause problems for the EVAP system, which will affect the vehicle's emissions output levels.

How long can you drive with an EVAP leak?

While it is safe to drive with an EVAP leak, you should not drive your vehicle for long while you do have a leak. If your Check Engine Light comes on, check to make sure the gas cap on your vehicle is securely fastened. If the light is still on, take it to a mechanic so the leak can be fixed.

Where is the EVAP control system located?

The EVAP emissions control canister is located on the driver side, near the rear tires.

Where is the EVAP vent solenoid located?

Generally the evap equipment is found by the gas tank up high, or somewhere at the top of the engine compartment, along the inside passenger fenderwall. Before you go ripping the old solenoid off the system, you may want to check at the parts store for price and availability.

Can a bad gas cap cause a P0449 code?

When this happens, you need to replace the whole canister which has the vent valve attached to it. Another possible failure point is the purge solenoid which I've included a picture of below. Additionally, this code can be caused by a bad gas cap.

What is a code po449?

What the P0449 code means. The P0449 DTC means that the evaporative emission control system vent valve or solenoid has a malfunction. The ECU detects this fault and causes the Check Engine Light to be illuminated on the dashboard.

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