Question about 1997 Mitsubishi Mirage

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I have 2000 mitsubishi mirage. Code P0170 FUEL TRIM MULFUNTION (BANK 1). What does that mean?

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Hi,

That code typically comes on due to an air leak, clogged fuel injectors, clogged fuel filter, or even a bad mass air sensor. I have answered other questions from people with similar problems, and some have had luck simply using a fuel injector cleaner with a full tank of premium gasoline. I've had good luck with STP Complete Fuel System Cleaner, available at most auto parts stores. I would also recommend you replace your air filter.

If your light had turned off, there really isn't much any mechanic can do, though you can ask for them to check for any air leaks in your intake system. But if your light comes on again and stays on, the problem probably is with your mass air sensor, and would probably need to be replaced.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Mar 11, 2011

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