Question about 1999 Mitsubishi Montero Sport

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I have 3 codes on my 99 montero sport.. p0421,p0173,p0400.. what do these mean and maybe a ballpark on what it might cost to have fixed?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

sleepygsx
  • 98 Answers

SOURCE: mitsubishi montero sport 99 - car will not start.

could be your ignition switch, first make sure you have power going from your battery to the starter, check at the starter for 12.5 volts then make sure starter has its ground, if that isnt it test the ignition cause thats probably what it is.

Posted on Dec 10, 2008

ewashmidas
  • 362 Answers

SOURCE: I have a 2002 montero sport which has given me 2

P0154 onepx.gif HO2S-11 (Bank 1 Sensor 1) No Activity Detected
P0174 onepx.gif Fuel System Lean (Bank 2)

Posted on Mar 03, 2009

  • 1 Answer

SOURCE: radio code for 1998 mitsubishi montero sport

2742 try this code

Posted on Jun 07, 2009

  • 1 Answer

SOURCE: No Cold air from 99 Montero Sport

replaced clutch, driver ac belts on 2000 montero sport a/c is still not blowing cold any ideas

Posted on Aug 04, 2009

  • 28 Answers

SOURCE: how to fix daignostic codes p0304, p0421 and p0455

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.

Posted on Aug 07, 2009

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Is the starter and flywheel for a '99 compatible with a '93?


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1 Answer

How do i fix a 2000 mitsubishi montero sport with a code of p0400.


code p0400 refers to exhaust gas recirculation (EGR) system--flow malfunction===causes--hoseleak/blockage, basic setting not carried out (if applicable)--wiring---EGR valve--EGR solenoid---ECM
As the EGR unit is susceptepable to corrosion. Check it out or replace it

Nov 10, 2014 | 2000 Mitsubishi Montero

1 Answer

To fix camshaft on montero sport-what would cost


it's not a big job, I would estimate maybe $100. Could be done in 2 hours I figure. I have owned a Mits Mighty max 2.0 for 30 years and that's my best guess. Don't have a shop jerk you around.

May 17, 2014 | 2000 Mitsubishi Montero Sport

2 Answers

P0421 CODES AND C1201


C1201 error code means that you have some problem in engine control system.

Possible causes for P0421 error
  • Warm Up Three Way Catalytic converter deterioration or malfunction
  • Exhaust system leaks
  • Loose front or rear HO2Ss
  • Faulty front heater O2 sensor
  • O2 sensors harness is open or shorted
  • O2 sensors poor electrical connection

The P0421 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem.

Apr 24, 2014 | Toyota Avensis Cars & Trucks

1 Answer

1999 Montero Sport XLS jerking into reverse. Error Code says change Transmission Fluid Temperature Sensor


Hi Sc, The job is labour intensive and may solve the problem. I wonder if the fluid in the tranny has ever been replaced? It's meant to be replaced at least once a year. If it smells burned have it replaced. Ask your shop to check the gearbox and engine mountings and in the event of your vehicle having rear wheel drive, the universal joints on the prop shaft. Regards John

Feb 23, 2014 | Mitsubishi Montero Sport Cars & Trucks

1 Answer

Engine light code P0400


Code 400 is for a problem with the EGR valve gas flow or the flow sensor.

Jan 16, 2014 | 2000 Mitsubishi Montero Sport

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