Problems with smoke and Gas mileage


I have a 1992 toyota corolla, which I have had to have swapped out with another engine. Its the same make and model engine. I am getting a white and grey smoke from the engine while in P and something while passing or when I am giving it a little more gas. I don't know what the problem with that is. Another thing is that this motor has the same fuel pump as the old motor and is only giving me 12 to 12 mpg and not the 24 to 25 mpg I usally got with the old motor. I can you guys help me out with my problems? I would like to know how I should solve these problems.
Thank you

Do you
have the same problem?
Thursday, May 31st, 2007 AT 9:36 PM

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