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Trouble code 420 and 440?


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99 Impreza Outback Sport.

 

 

So, I pulled the codes this morning and got a 420 Fuel Tank Pressure Control Solenoid High Input and 440 Fuel Tank Pressure Control Solenoid Low Input

 

Where are the above?

 

Thanks,

UMT

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P0420 catalyst efficiency below threshold.

P0440 evap emissions system.

You got the wrong codes.

Your definitions are for codes P1400 and P1420.

 

The pressure control solenoid valve is located above the charcoal canister behind the right rear wheel. All of the metal parts back there are prone to rusting. I don't envy you having to remove the canister to get to that valve. I'd expect some corrosion in the wiring or inside the connector. Good possibility of mouse damage too.

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P0420 catalyst efficiency below threshold.

P0440 evap emissions system.

You got the wrong codes.

Your definitions are for codes P1400 and P1420.

 

The pressure control solenoid valve is located above the charcoal canister behind the right rear wheel. All of the metal parts back there are prone to rusting. I don't envy you having to remove the canister to get to that valve. I'd expect some corrosion in the wiring or inside the connector. Good possibility of mouse damage too.

 

good call!

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