Question about 2000 Mitsubishi Montero Sport

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PO171 and PO174 on 2003 Mitsubishi Montero Sport 3.0 liter.

Engine light comes on and OBDII gives two codes PO 171 and PO 174 (Lean on banks 1 and 2).

Posted by Anonymous on

6 Suggested Answers

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Posted on Jan 02, 2017

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

emissionwiz
  • 75822 Answers

SOURCE: My check engine light is

Bank 1 is the converter on the side that engine cylinder one is on. Yes that is true about the converter, the computer is programmed for a certain value, an aftermarket cat will not meet that value and the check engine lite will be triggered.

Posted on Sep 09, 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: location of 02 sensor bank 1 sensor 1 on 3 ltr engine

it's right adjacent to the cataytic converter

Posted on Jun 11, 2009

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1 Answer

My 2000 has codes po171 po300 po 463 po480 what


P0171 =system too lean (bank 1)
P0300 = multiple misfire
P0463 = fuel level sensor circuit high input
P0480 = cooling fan 1 control circuit

Aug 16, 2013 | 2000 Oldsmobile Silhouette

1 Answer

2002 bmw check engine light on, diagnostic trouble codes p0174 and p0171.


Google the Codes
OBD PO171 etc & print a code chart
They are Oxygen Sensors-lean on both banks
They should have been changed at 100,000
miles on all your vehicles.

Aug 03, 2013 | 2002 Mitsubishi Montero

1 Answer

Mitsubishi montero p0171 p0174


The P0171 means System too Lean (Bank 1)
the P0174 means System too Lean (Bank 2)
______________
om580 obd2 scanner

Sep 18, 2012 | 2003 Mitsubishi Montero Sport

1 Answer

Please tell me what this means,,, po171 band 1 system too lean and po174 band 2 system too lean, thank you, jill


PO 171--is an O2 Sensor Code for a Lean Condition
on Bank 1 (right side exhaust)

PO 174 -- is an O2 Sensor Codes for a Lean Condition
on Bank 2 (left side exhaust)

You gave us no vehicle
You gave us no drivability issues or
vehicle history,nothing

If the O2's have 100,000 miles on them,change the (2)
closest to the engine. They are most likely worn out
& the switching times are too slow to control injector
pulse width & thus set a MIL Lamp (OBD2 Fault ) on
your dash

You can learn a lot on the internet if you put OBD2 in your
Search Engine (Internet Explorer,etc)

Jul 15, 2011 | Lincoln Town Car Cars & Trucks

2 Answers

Error codes po 134 po 153 po 154 po 155 po 171 po 174


PO 134 = 02 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR1)
PO 153 =02 SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 1)
PO 154 =02 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SENSOR 1)
PO 155= 02 SENSOR HEATER CIRCUIT MALFUNCTION (BANK 2 SENSOR 1)
PO 171= SYSTEM TOO LEAN (BANK 1)
PO 174= SYSTEM TOO LEAN (BANK 2)
I WOULD SAY YOU HAVE FAULTY OXYGEN SENSORS CAUSING THE ENGINE TO RUN TOO LEAN REPLACE THEM AND YOU SHOULD BE BACK IN BUISNESS

Feb 23, 2011 | 2004 Suzuki Grand Vitara

1 Answer

Need a fireing order for 01 mitsubishi. montaro sport v6


there are a few different engines. A 3 liter with or without a distributor, and a 3.5 liter. All V-6 engines have firing order 1-2-3-4-5-6. See figures below:

3 liter engines:

jturcotte_553.gifjturcotte_554.gif

3.5 liter engine:

jturcotte_555.gif

Dec 19, 2010 | 1999 Mitsubishi Montero Sport

3 Answers

2003 Ford Ranger 4x4 extended cab- diagnostics checked and got these codes- P0171, P0174, P0300, P0316. Can you tell me what they mean?


P0171------ system too lean bank#1
Po174------ system too lean bank#2
For these 2 codes, try cleaning the maf sensor (mass air flow), that is mounted in the big black hose that goes from the air filter housing to the throttle plate, if it is dirty, that will cause those 02 sensors to send a signal to the computor to lean the air fuel mixture. If cleaning it doesn't work, the sensors will probably need changing.
P0300---- Random/multiple cylinder misfire
P0316---- Cylinder misfire at start up---- first 100 revolutions.
On those 2 codes, you have to do some testing to find out why there is a misfire.
Possible causes:
dirty/malfunctioning injectors
weak coil pack
fowling spark plugs/wires
Low fuel pressure

May 11, 2010 | 2003 Ford Ranger Regular Cab

2 Answers

What is PO171 on Ford Winstar 97 3.8 liter


That's an 02/oxygen sensor code means that bank 1 or 2 is too lean. Good Luck contact if you need more help.

Dec 29, 2008 | 1998 Ford Windstar

1 Answer

How do you reset the engine service light on my 2001 Montero Sport


An OBDII scanning tool will reveal the cause of the issue, and give you the ability to reset it. You might also disconnect the negative battery terminal, wait about a minute, then reconnect. The light might come back on after awhile if the issue had not been resolved. Also, you will need the radio code to unlock your radio if you do option #2.

Jul 01, 2008 | 2001 Mitsubishi Montero

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