HUGE problem please help

[ScottEKCoupe]

I have been searching for answers for the last two days with no luck...

I had the CTR swap done last week, took it in for inspection, had to swap my chipped P28 ECU for a P2P ECU. I was told to drive it to put miles on it so the readiness monitors would clear. I have driven 50 miles a day for the last 3 days, everytime I park it for the night, the CEL comes back on, having to restart the process all over again. The readiness flags NEVER get reset and I cannot clear inspection.

The code associated with the CEL was P0453. It comes back as EVAP voltage too high or fuel tank pressure sensor voltage too high...

My EVAP canister has a sensor on it that I have not seen on other evap canisters

I am completely stumped by this and so is the technician at the inspection station. It's annoying as I end up back at square one every night when I get home and cannot clear the ready flags

 

[ScottEKCoupe]

Anyone?

 

[kasperwhoo]

P0450 is "Evaporative Emission Control System Pressure Sensor Malfunction".P0453 is "Evaporative Emission Control System Pressure Sensor High Input".I would look at the P0453 problem first and check the input voltage, not sure, what it is on your car, I guessing 5 volts DC.If, the input voltage is correct, Replace the Sensor. I not promise this fix, but, 95% of the time it will if the input voltage correct.The Canister is a Charcoal Filled Tank. It absorbs Fumes from the Fuel Tank (Hydrocarbons I think). So, it could have a clogged line, damaged Tank, or need Replaced. I would not think it really need replaced, but, I guess they can malfunction. Go with the Sensor as your main Focus. It may also be a Purge Valve!!

 

[EK9turbo]

the small vac line (next to the pipe that goes to the throttle body) should go to the back of the manifold on the right hand side as your looking at it from the front of your car. This allows the pressure to be evacuated by the manifold vaccum operating a small diaphram. where does this small pipe go at the minute?