On the 2006 Honda CRV, the P1454 and the P0452 are directly related. Both point to a problem with the Fuel Tank Pressure Sensor. The P2422 points to a problem with the EVAP Canister Vent Shut Valve. Both of these are located under the rear, driver’s side of the vehicle, on the EVAP Canister. Carefully inspect the electrical connectors and wire harnesses to each for any loose, broken or damaged wires. Inspect the vacuum lines for any cracks, holes or disconnections. Inspect the canister itself for any signs of damage. If no problems are found, the fuel tank pressure sensor and canister vent shut valve will need to be replaced. Given that both of these items are located on the canister, make sure to rule out anything common thread these have, like a damaged canister or vacuum line, before replacement.
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