Question about 2001 Mitsubishi Mirage

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I have a 2001 mitsubishi mirage and my light is on the code are p0403 and p0421 and i want to know how to fix it.

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Ok here is the way to get things done for free....are you ready???
Take the car to Auto Zone or Discount Auto and ask them to scan your comouter and give you a print out and a parts price and availbility of what the computer scanned codes are....they do this service for free, so if you buy the parts from them you will be able to bring the car home with all the needed litterature and parts to make a fair assumption that your vehicle will be fixed for a fair parts price.

Posted on Aug 08, 2010

  • Correctquote Dec 01, 2011

    Very help and takes fear out of getting car repair services. Diagnosing trouble n trusting mechanics give true assessment n cost is real if not worst than going to bad dentist.


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P0403 Mitsubishi mirage 2000

Posted on Dec 01, 2011


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Posted on Jan 02, 2017

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1 Answer

What does fault code P0104 and P0403 mean for a 2001 4 cyld Mitsubishi can i fix it?

As you said you find p0104 you can check air mass flow sensor for this code, it can be lose connection or faulty sensor. if any issue let me know. thanks

Nov 15, 2010 | 2001 Mitsubishi Eclipse

1 Answer

Have a code p0421 coming up on the cars pc.Any idea what this could be

if your check engine light is on and its showing fault code P0421 this may be from a factory recall on the warm-up converter and a PCM reflash. MILEAGE OF THE CAR DOES NOT EFFECT THIS RECALL. Also it could be your Pre-Catalytic Converter.

However your car should run just fine the way it is, but i would suggest fixing it within time. I hope this helps.

Jun 24, 2010 | 1999 Mitsubishi Mirage

1 Answer

Mitsubishi pinin fault code P0421

yes this is your catalytic convertor is clogged you have to change before is damages ur o2 sensors

Feb 12, 2010 | 2001 Mitsubishi Montero

1 Answer

I have a 2001 mitsubishi eclipse and an error code of p0403. the car hesitates when i hit the gas pedal

P0403 - Exhaust Gas Recirculation Circuit Malfunction


Dec 23, 2009 | 2001 Mitsubishi Eclipse

2 Answers

How do I reset the service engine light on a 2001 Mitsubishi Mirage?

It has to be done with a scanner. Like the ones garages have, unless someone you know ownes one, as they are pricey!! Unhooking the battery will NOT clear codes.

Sep 14, 2009 | 2001 Mitsubishi Mirage

1 Answer

How to fix daignostic codes p0304, p0421 and p0455 efficiently without costing an arm and a leg.

P0304 is Misfire in cyl# 4. Check your ignition system and fuel system.

P0421 is Catilist effeciency. Fix P0304, if P0421 returns you will need a catalitic converter

P0455 is an Evaportive emission leak. Be sure you gas cap is tight and secure. If it is ok, then there is a leak in the system.

Aug 06, 2009 | 2001 Mitsubishi Eclipse

2 Answers

Whats the radio code for a 2001 mitsubishi mirage?

You will have to take it to the dealer ship because the code is set by who owned it before or the person that activated the security on the radio. There is no way around that but take it to the dealer

Jul 14, 2009 | 2001 Mitsubishi Mirage

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