Question about 1986 Mitsubishi Mighty Max

1 Answer

1986 mitsubishi 2.6 runs rough to 3000rpm, dies at idle. Rebuilt carb, new Oxygen sensor

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Mitsubishi Master
  • 21,873 Answers

You would need to figure out if you are dealing with a fuel problem or an ignition problem to proceed. Have you checked for vac leaks and know for a fact the engine has compression on all 4 cylinders ?

Posted on Sep 12, 2012

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
  • 24 Answers

SOURCE: 2000 mitsubishi galant

If you have changed out the parts and still get the codes you probably need to have the ECM reset. The dealer can do that for you or a repair shop that has the scan tool.

Posted on Jun 20, 2008

voodoomox
  • 1689 Answers

SOURCE: O2 Sensor defect

MR988905 costs $300+

SNG O2 sensor is just below $100

they may claim being made with the same quality and both are tagged "direct fit" for easy installation.

its just my idea, good luck.

Posted on Jul 16, 2008

blueextc3221
  • 15935 Answers

SOURCE: need to know placement of heated oxygen sensor

The O2 sensors are located in the exhaust piping.
One (bank 1) is on the engine side of the Catalytic convertor.
Second (bank 2) is on the other side (exhaust end).

There are manufacturers that make universal fits that will go in either location. Be sure to specify the rear sensor when you go to the parts store.

It will look like this....

cfea0cf.jpg
It threads right into the exhaust pipe.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Posted on Mar 05, 2009

dnd_toolbox
  • 18 Answers

SOURCE: My p/u 1988 mitsubishi 2.6L runs rough after replacing carb with

Have a qualified mechanic rebuild your original carburator and reinstall it with all the original vaccum hoses and controls functioning properly.

Someone smarter than you and I, designed this engine to function properly with the feedback carburator. Installing an aftermarket carb negates the entire emision control system and will not allow the engine to "Breathe" properly.

"KISS" (Keep it simple, Stupid)

Posted on May 09, 2009

  • 1 Answer

SOURCE: I have a 1997 Mitsubishi Galant with rough idle

I am having the same issue on Mitsubishi Galant 02. Clattering on acceleration, herky jerky idle. Pulled a code multiple cylinder misfire. My mechanic's diagnosis is bad valve cover gasket causing oil to seap into the spark plugs and bad timing belt, which I have not replaced at 150k miles. I do however know my fuel injectors do need cleaning, he hasn't ruled that out either. Have you pulled any code on it? I have read on engine knock sensor going out on some of these also. Hope this helps some.

Posted on Oct 22, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Where is oxy.sensor


Usually in the exhaust pipe near the engine.
They don't usually cause a rough idle, and the check engine light should be on if you have a faulty sensor.

Mar 21, 2016 | Cars & Trucks

1 Answer

My 1996 5.2 dodge ram 318 laramie sport idles roug


clean the intake with a good quality intake cleaner. A carb cleaner that will not hurt plastic parts.After that let it cool, take some of the carb spray and clean the o2 sensors ,let dry,wipe the o2 sensors down with a clean cloth.replace them in there sockets.Remove one battery post for about 15 minutes.It should run better.The o2 cleaning should last only temperarely and the o2s will eventually have to be changed.you may want to check to see if you have a fuel filter and change it as well

Dec 26, 2013 | Cars & Trucks

1 Answer

Rough Idle on 1986 GMC Jimmy.


change your some sensors that can probably cause your engine to run rough, ask you local oarts store for more info...

Aug 21, 2009 | 1986 GMC Jimmy

1 Answer

Idles rough plugs are white runs and drives good but idles rough everything has just been rebuilt and checked all vacuum lines are where they go i dont think it could be timing but


sounds like the same problem I had with my 1985. I have found that when the carborator goes bad. It gets an internal vacume leak that can,t be fixed. I wen,t through 9 rebuilt ones that all had the same problem. put on a aftermarket weber carb & has ran fine for the last 7 years.

Jul 15, 2009 | 1986 Toyota Pickup 4WD

1 Answer

1993 nissian p/u run rich and it running real rough


If it is a carb engine have the air fuel mixture corrected by adjusting the screws on the carb. Try also adjusting the idling.

For EFI engines see if you can check the Idle Control Solenoid Valve, have it cleaned. You can also check the oxygen sensor if it is working or not

Jun 04, 2009 | 1993 Nissan Pickup

2 Answers

86 toyota corolla, dies at stoplights and idles rogh


well you could try to get a vacuum gauge and see if your car reads what it supposed to and if you buy one it could tell you what it could be.

May 20, 2009 | 1986 Toyota Corolla 2 Door

Not finding what you are looking for?
Cars & Trucks Logo

193 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Experts

Marvin
Marvin

Level 3 Expert

85161 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Mitsubishi Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...