Question about 1998 Jeep Wrangler

2 Answers

Engine code p0171 bank 1 lean - 1998 Jeep Wrangler

Posted by on

  • Clint Smock
    Clint Smock May 11, 2010

    Have you checked it for vacuum leaks?

×

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 74 Answers

You should have looked for a vacuume leak to start with The code is for a lean condition, not bad O2 sensor. Look for a vacuume leaks at the PVC hose elbows and at the EVAP hoses and elbows. I would check/change the MAF sensor, if the condition persists after you reset the computer codes then it is defineatly a leak somewhere, and you need to chase it down.

Posted on Apr 24, 2010

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 972 Answers

I would try a new fuel filter if its due for one anyway. my car was setting that code but ran fine. i changed fuel filter and that took care of it. of course there is other stuff like fuel pressure or vacuum leaks or plugged injectors that can cause that code. but a fuel filter if one is due anyway is a good place to start.

Posted on Apr 24, 2010

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

SOURCE: OBD fault code P0171

vacuum leak

Posted on Jun 26, 2008

  • 1861 Answers

SOURCE: 1995 jeep engine code

Clean the mass air flow sensor with brake cleaner spray. Throw away the K & N filter if you have one installed. Both are common causes that set a P0171

Posted on Sep 10, 2008

keithheavili
  • 410 Answers

SOURCE: got code p0171 system too lean (bank 1)

This is probably referring to problems with your bank 1 oxygen sensor.  Without the vehicle make, model and year I can't tell you where it is located.  However, if you replace your front oxygen sensor that should clear up the problem.  Also, if you do replace it, I always run some fuel injector cleaner through a full tank of gas at the same time.  Hope this helps!

Posted on May 17, 2009

  • 7353 Answers

SOURCE: have p0130 and p0133 codes 98 toyota tacoma

I would check the O2 sensor, and if it checks bad, replace it, and clear the trouble codes. If the light comes back on, you may need to check further. .

Posted on Oct 28, 2009

GasparMacari
  • 166 Answers

SOURCE: diagnostic code #'s p0174,p0171

oxygen sensors are telling you that the mixture is too poor on ur sistem need to check its behaviour and see whats causing that lean mixture
hoope this helps

Posted on Nov 10, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

98 dodge ram 1500 5.9L 2wd codes P0300, P0301, P0302, P0303, P0171. What all do I need to do to resolve??


the p0300--p0301-p0302=p0303 are misfire codes and can mean needs tune up or wiring problem and p0171 is system to lean bank 1 with this code if you correct it will probably correct the misfire codes your receiving
http://www.obd-codes.com/p0171 Fixing Hesitating Car P0171 Code YouTube P0171 System Too Lean Bank 1

Aug 26, 2016 | Dodge Cars & Trucks

1 Answer

Im getting P0171 code- lean .


About 259,000 results (0.64 seconds) Search Results

    obd ii - 'Check Engine' code P0171 System Too Lean - Is it ...

    mechanics.stackexchange.com/.../check-engine-code-p0171-system-too-l...
    Feb 11, 2014 - 'Check Engine' code P0171 System Too Lean - Is it safe to drive? ... My question is: is it okay to drive my car while it shows these codes? ... This will cause you to get increasingly worse fuel mileage. ... I am going to defer to your expertise, but I just want to ask if you've considered that lean-running engines ...

    P0171 and P0174 - OBD-II Trouble Codes - RepairPal

    repairpal.com > Encyclopedia > OBD II Codes
    Definition of error code P0171 and P0174 - System too Lean (Bank 1 and Bank 2). ...Before we get into the main causes of P0171, let's explore why this code matters. ..."Lean" running cars and light trucks are highly polluting vehicles. Most of ...

    Mazda tribute codes p0171 - Cars & Trucks 'Cars & Trucks

    www.faqqq.com/.../mazda-tribute-codes-p0171-cars-trucks-cars-trucks-6...
    Question Product: Cars & Trucks Question Details: Mazda tribute codes p0171 ... I am getting the following (4) codes in a 2003 Mazda Protege5 engine: P0090 ...

    P0171 Code thrown while idle - Toyota Nation Forum : Toyota Car ...

    www.toyotanation.com > ... > Yaris/Scion iA, Vitz and Echo Forum

Jan 27, 2016 | Cars & Trucks

1 Answer

Engine light on


P0171 ; Fuel Trim System Lean (Bank 1)
P0174; Fuel Trim too Lean (Bank 2)
fuel trim is system to modify injector pulse if system go lean it will go rich when the system is too much lean and is max.rich it code
look for 02 sensor bank 1 and 2 data
hope it helps

Mar 31, 2014 | 2003 Chevrolet Malibu

1 Answer

Code po171 system too leen bank 1


DTC P0171 - System Too Lean (Bank 1)
Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1.

Note: This DTC (Diagnostic Trouble Code) is very similar to P0174, and in fact your vehicle may show both codes at the same time.

I would suggest that you take a look at the front oxygen sensor. Typically speaking the oxygen sensor causes this code to appear. Here is the possible cause list from the manual for your car.

Trouble Code: P0171 - Fuel System Lean (Bank 1)

Possible Causes:
Air leaks in intake manifold, exhaust pipes or exhaust manifold
Base engine mechanical problem causing a lean A/F condition
Fuel control Sensor is out of calibration (e.g., ECT, IAT or MAP)
Fuel delivery component fault (clogged filter, low fuel pressure)
O2 element is contaminated, deteriorated or it has failed
Vacuum hose is disconnected, broken, leaking or loose

Hope this helps (remember to rating this answer ans leave us a testimonial comment). Thank you for using FixYa.

Oct 12, 2011 | 2000 Ford F150 Flareside SuperCab

1 Answer

Engine check light on error code 1 is P0171 system too lean bank 1 error code 2 is P0174 system too lean bank 2


P0171 system too lean bank 1
P0174 system too lean bank 2
links to information on the codes

it means that the O2 sensors in your vehicle detected a lean condition in their respective banks. this could be caused by a dirty MAF (mass air flow) sensor or a vacuum leak downstream from the MAF sensor

sometimes you can clean the MAF with electronics cleaner or brake cleaner but be sure to take it off the vehicle first. be careful not to damage the MAF while spraying the cleaner, and allow it to dry completely before installing it on the vehicle.

May 21, 2011 | 2001 Jaguar S-Type

1 Answer

SES light on code P0171, 2005 Xterra, what to do??


P0171 is a lean oxygen sensor code for bank 1 on your engine.
It indicates that there is a lean condition (engine not getting enough
fuel or getting too much air) on that side of your engine.
Bank 1 is always the side of the engine where #1 cylinder is
located. In your case it is front-most cylinder on the right side
of the engine. (As viewed from the driver's seat)
So bank one is the passenger side.

If there are any other engine control codes, you need to fix those
first, as they may be the cause of the lean condition.

If that is the only code you are getting, then diagnostic testing
needs to be performed to determine the actual cause of the problem.

Possible causes are:

* Intake air / vacuum leaks
* Faulty / dirty fuel injector(s)
* Incorrect fuel pressure (Likely to cause both P0171 and P0174 at the same time)
* Low fuel volume (Pressure OK) (restricted fuel filter,etc.)
* Fauly Mass Airflow Sensor
* incorrect PCV hose connection
* Exhaust gas leaks
* Faulty Air Fuel Ratio Sensor

Dec 01, 2010 | 2005 Nissan Xterra

1 Answer

1996 dodge dakota black smoke, engine running horrible getting P0171 code?


It sounds like your engine is running very rich yet the computer thinks it's lean. P0171 is a lean code for bank 1 (the side of the engine with cylinder #1) Pretty much the only causes could be a large exhaust leak, bad o2 sensor or bad computer. Is the p0171 the only code?

Jul 31, 2010 | 1996 Dodge Dakota

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

1 Answer

An Engine Light came on the dashboard of my 2003 Ford Windstar.The code came up saying p0171 (Fuel System too lean.(Cylinder bank 1) What does this mean?


P0171=System Too Lean Bank 1,
not cylinder 1,it means the oxygen sensor on the drivers side exhaust was stuck on lean and set a code.
doesn't mean you need to change the oxygen sensor yet,first clear the code and see if it corrected its self.

Dec 16, 2009 | 2003 Ford Windstar

Not finding what you are looking for?
1998 Jeep Wrangler Logo

292 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

76070 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

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

Answer questions

Manuals & User Guides

Loading...