Question about 1997 Mitsubishi Mirage

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What would cause the fuel trim check engine code?

1997 Mitsubishi Mirage 4g15

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It sounds like it is telling you that the Fuel Cap needs to be Replaced. if the Seal on the Cap is Bad, It will **** air into the Fuel tank.

Posted on Jan 23, 2009

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2 Answers

P0301


camshaft sensor

Jan 17, 2013 | 1997 Mitsubishi Mirage

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


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!!

Mar 11, 2011 | 1997 Mitsubishi Mirage

1 Answer

CHECK ENGINE LIGHT ON CODE P0170


DTC P0170 applies to fuel trim malfunction on all 2.4L vehicles, 3.0L Federal vehicles and right bank (bank 1) on 3.0L California vehicles. 
DTC P0173 applies to fuel trim malfunction on left bank (bank 2) on 3.0L California vehicles.
DTC Set Criteria (2.4L)

Engine is in closed loop control. Intake air temperature is more than 14°F (-10°C). Barometric pressure is more than 11 psi (76 kPa). Volume Airflow (VAF) sensor output frequency is 88 Hz or more. Code will set if long-range fuel correction is less than -12.5 percent, or more than +12.5 percent, for 5 seconds and short-range fuel correction is less than -10 percent, or more than +10 percent, for 5 seconds. 

Engine is in closed loop control. Intake air temperature is more than 14°F (-10°C). Barometric pressure is more than 11 psi (76 kPa). VAF sensor output frequency is less than 88 Hz. Code will set if long-range fuel correction is less than -12.5 percent, or more than +12.5 percent, for 5 seconds. On 2.4L code will also set if short-range fuel correction is less than -15 percent, or more than +15 percent, for 5 seconds. On 3.0L Federal code will also set if short-range fuel correction is less than -13.5 percent, or more than +13.5 percent, for 5 seconds. 

Have the O2 Sensor changed on the Right Bank, ( passenger side of the Engine, or where the # 1 cylinder is.)
Good luck and hope this helps

May 02, 2009 | 1997 Mitsubishi Mirage

4 Answers

Carburetor Tuning Mitsubish.


As far as i know, original stock carburetor for Lancer 1989-1992 engine 4G15 12 valve is Aisan Variable Venturi. It have 3 screws :
- air-fuel mixture screw
- main jet adjusting screw
- idle adjusting screw

and here's the document you may need :
http://www.mitsubishi-motors.kiev.ua/info.php?id=20
http://www.lilevo.com/mirage/

Good luck !
Winz

Mar 23, 2009 | 1992 Mitsubishi Mirage

1 Answer

1997 Mitsubishi mirage gas problem


Check you air filter and hook up a scan tool to see if you have a active code. Even if the check engine lamp is not on hook it to scan tool?

Jan 11, 2009 | 1997 Mitsubishi Mirage

2 Answers

Lack Of Power 4g15 1.5 engine.


You may have a back presure problem in the eghaust system.. usualy this is the fault of the caytiletic convertor being plugged.....heve your system compleatly checked by your local muffler shop if you are unsure of your own thoughts..

Oct 08, 2008 | 1997 Mitsubishi Mirage

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