Let’s know the meaning of the car engine P2470 Code and solve the car engine problem if the meaning of the engine code is fully ok. The powertrain problem of the car engine is very easy to fix and you must solve the car engine properly. When you fill up the car with gas, the smokes in the tank get required into a canister what filled with started charcoal. Also, on a hot day as the gas heats up and heats, those same vapors push into the canister where they are kept. But the charcoal can only clasp so much gas. At some point it has to be flattened. The discharging process is termed canister purge.