Question about 2003 Mitsubishi Montero Sport

1 Answer

Engine Service Soon Light On code P0154

Car has been to the dealership for a Engine Service Soon light with a code P0154,They replace O2 sensor for B2S1. Drove 53 miles Engine Service Soon light came back on. Then Technician checked fuel mixture-Ok suspect intermittent failure in PCM. Replace PCM. drove car 58 miles and then Engine Light came back on. Return car to dealership. Technician contact Mitsubishi techline confirmed diagnosis replaced B2S2 O2 sensor for code P0154. test with scan tool and test drove. I drove 28 miles Engine Service Soon Light came back on. Any solution?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Mitsubishi Master
  • 956 Answers

Error Code: P0154
Description:
Heated Oxygen Sensor (HO2S) 1 , Bank 2 - No Activity Detected
Problem areas:
- Wiring.
- Open circuit in signal wire, between Heated Oxygen sensor 1, Bank 2 and ECM. (Must check and confirm)
- Heated oxygen sensor (HO2S).
- Engine control module (ECM).

Posted on Mar 10, 2014

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

SOURCE: I have a 2002 Montero

80 % of all O2 Sensor Codes are from Vacuum Leaks
or EVAP System Vacuum problems

Engine misfires also set them, to protect the exhaust converter

Have a repair shop get down to the real issue

Posted on Jul 23, 2011

dustyboner
  • 331 Answers

SOURCE: 1999 galant o2 sensor

have you had the car scanned for codes? the light could be on for something other than the o2 sensor

Posted on Oct 15, 2008

  • 297 Answers

SOURCE: Ive just drove 20 miles in a 2006 1.1 Mitsubishi

May be one ' OF " ensure service (oil/filter) is not due !! Did yoy check oil/coolant levels ??

Posted on Aug 11, 2009

  • 64 Answers

SOURCE: service engine soon light came on and later that day turned off

The reason for the light to come on an the after you have switched the vehicle off and back on again and the engine light stays dead is because the control units of the vehicle will reset when the ignition is switched off for 10sec. If the light stays off the it might be that the car got a wrong reading from a sensor and caused the engine light to come on. If it was a serious problem the light would have come on again

Posted on Sep 20, 2009

dmsr63
  • 2050 Answers

SOURCE: My 2004 Mitsubishi Montero battery

Sounds like your alternator is not charging your battery.

Posted on Nov 17, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

A few days ago the check engine light turn on in my 2004 Chrysler Sebring and I got the code P0137. The light went off the next day but I still took the car into the dealer and they changed out the O2...


COULD HAVE SHORT IN WIRING CIRCUIT OR PCM PROBLEMS.IT WOULD NOT BE SAFE TO DRIVE CAR WITH O2 SENSOR FAULT. BECAUSE FUEL MIXTURE WOULD BE TOO RICH CAUSING CATALYTIC CONVERTER DAMAGE CAUSING IT TO OVERHEAT GET RED HOT UNDER CAR CAUSE FIRE AND YOU WOULD HAVE A LOT OF FUEL CONSUMPTION .I WOULD NOT DRIVE CAR.BETTER TO USE A RENTAL CAR FOR LONG TRIP GET CAR CHECK OUT AGAIN AT THE DEALERSHIP.

Jun 24, 2011 | 2004 Chrysler Sebring

1 Answer

Symptons o2 sensors


If your O2 sensors are malfunctioning, the main symptom would be that the Check Engine light will come on. On some vehicles, an O2 sensor circuit shorted to ground can cause a no-start problem.
If the "Check Engine" or "Service Engine Soon" light is on and there is a code for the O2 sensors, I would like to also advise you that many O2 sensor codes are not caused by the O2 sensors themselves. In many cases, the O2 sensors are only REPORTING the problem. for example, a code P0171 "Oxygen Sensor Lean" code is rarely ever caused by the O2 sensor. It is usually caused by a vacuum leak or a failed Mass Airflow sensor (MAF) or Manifold Absolute Pressure sensor (MAP) or a bad fuel injector. In these cases, repairing the real reason that the engine is running lean will fix the O2 Sensor code without replacing the O2 sensor.

Mar 12, 2011 | 2000 Chevrolet 3500

2 Answers

The engin light is service soon part pv154


P0154 is an OBDII code for a 'lazy' O2 sensor, it is not switching fast enough for the ECU to adjust parameters when managing your engine-you probably are over 100,000 miles now, they get a coating on them that makes them react slower than expected-time to replace, they run about $50 and are pretty easy to change.

Feb 10, 2011 | 2000 Oldsmobile Intrigue

2 Answers

Service Engine soon light on - diagnostic code says o2 sensor. What is an O2 sensor and is it hard to replace


You'll need to give us the specific code, in the format P0xxx. Just saying "O2 sensor" doesn't mean anything. It could be the heater circuit, fuse, o2 sensor itself, etc. Changing an O2 sensor isn't too hard but you may not need to replace it/them.

Please report back with the code or look it up at http://www.check-engine-light.com

Nov 13, 2009 | 2002 Pontiac Montana

1 Answer

I have a 2000 buick lesabre. The fix engine soon


It NEVER was the camshaft sensor! Unless, you've removed the engine lately, which I doubt.
RUN to Advance Auto Parts and buy a can of "SeaFoam" and add to your gas tank per instructions...drive at least 100 miles and the problem should go away...IF it doesn't you'll have to replace the O2 sensors in the exhaust system...Any good mechanic should be able to do this for much less $$ than the dealership DO NOT go to the dealer for repairs!
Good Luck

Jun 22, 2009 | Buick LeSabre Cars & Trucks

1 Answer

Engine light won't turn off, replaced o2 sensors, same code p0154


unhook the battery for about 15 minutes and hook it back up... that should clear any codes and reset the light. if you have an anti-theft radio make sure you know the code for it and how to enter it.

Apr 11, 2009 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

Service Engine Soon Light


IF YOU HAVE AN AUTO ZONE OR ADVANCE AUTO PARTS WERE YOU LIVE STOP IN TELL THEM THAT THE LIGHT IS ON THE CAN RUN THE CODES AND TELL YOU WHAT CODE ARE BEING SENT SOMETIMES THEY ARE NOT MUCH HELP ON WHAT THE CODE MEANS AND IF THAT'S THE CASE WRIGHT DOWN WHAT THEY TELL YOU AND LET US KNOW YOU SAY THE LIGHT IS ON BUT CAR RUNS FINE MOST OF THE TIME ITS THE O2 SENSOR GOING BAD /GONE BAD IF THE SAY ITS THE O2 SENSOR ASK THEM TO RESET THE ECM A.K.A COMPUTER IT MAY HAVE JUST BEN A GLICH IF IT HAPPEN ANY MORE PLACE THE SENSORS

I HOPE THIS HELP'S
THANKS
HAILEYSCRAZYDADDY

Dec 30, 2008 | 2004 Buick Rendezvous

4 Answers

Service Engine soon light Code P0133


I just came from an Autozone, and then spoke with 2 Hyundai dealership service departments and they all three stated the P0113 code is the Intake Air Temperature sensor (IAT, also referred to as the Mass Air Pressure - MAP - sensor) on the engine, not an O2 sensor found in the exhaust system.

Dec 11, 2008 | 2001 Hyundai Elantra

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

588 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8548 Answers

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

Answer questions

Manuals & User Guides

Loading...