Question about 2001 Ford Explorer

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2001 Ford Explorer. Replaced bank 1 sensor 3 times now and bank 1 code came back again. what could be the problem?

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Are you clearing the codes after the read? are you removeing pos bat cable before the install and than putting it back on and waiting 10 mins for pc to reprogram? Than start motor

Posted on Mar 12, 2011

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What does code p1131 mean on a 2001 ford taurus


P1131 Ford
P1131 Ford - Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1

Repair Importance Level: 3/3

Repair Difficulty Level: 2/3

http://engine-codes.com/p1131_ford.html

Forum Code

Possible causes

- Faulty Oxygen Sensor

- Vacuum leak affecting bank 1 only

- Fuel injector problem bank 1

- Check for cylinder misfire on bank 1

- Engine mechanical condition

Tech notes

Though the Oxygen (O2) sensor, the Engine Control Module (ECM) has detected a lean system, which means that there is either not enough fuel or and excessive amount of air in the system. Start by checking for vacuum leaks.

When is the code detected?

The Engine Control Module (ECM) detected bank 1 oxygen (O2) at its lean limit

Possible symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

P1131 Ford Description

A Heated Exhaust Oxygen (HO2S) sensor indicating rich at the end of a test is trying to correct for an over-lean condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.

Read more: http://engine-codes.com/p1131_ford.html#ixzz3izk89wMu

Aug 16, 2015 | Ford Cars & Trucks

1 Answer

We have a 2001 ford explorer sport. Won't pass


The error code 1131 means the air/fuel mixture is too lean on Bank-1 while 1151 indicated mixture is lean on Bank-2. You can check for the causes of the problem in following link for both error codes (1131 as well as 1151):

http://www.obd-codes.com/trouble_codes/ford/p1151.php

Jun 17, 2013 | Cars & Trucks

2 Answers

I have a 2000 ford explorer 4.0 v6 ohv and i have an bank 1 sensor 1 code. which o2 sensor is that?


Ford Explorer and V8 O2 Sensor Locations diagram. This shows the location of Ford oxygen sensors on Bank 1 and Bank 2. If you want to know where your O2 sensors are, this diagram is your guide (click over pic for zoom)...

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Hope helps with this (remember to rate and comment this answer).

Apr 29, 2011 | 2000 Ford Explorer

1 Answer

Where is bank 1 on a 2001 ford taurus?


If it was the upper o2 this is the one.This does not mean the o2 is bad,check the spark plugs and boots,and fuel pressure.The fuel ratio is not correct on that bank.

Apr 13, 2010 | 2001 Ford Taurus

1 Answer

96 ford explorer codes too lean bank 1 and 2


1. a vacuum leak. 2 low fuel presure. 3 bad airflow sensor.4 an exhaust leak before bank 1 or bank 2 o2 sensor 2

Oct 11, 2009 | 1996 Ford Explorer

2 Answers

I get a DTC P0133 code on my 1998 Ford Explorer V8


it may be a defective O2 sensor here is th difinition:
P0133 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 1 , this is the sensor on the side of the engine that #1 cylinder is on, it is the sensor before the cat.

Jan 11, 2009 | 1998 Ford Explorer

5 Answers

Code #P0171 & code #P0174


Look, man here is the deal:
code p0174 - refer to the front cylinder bank
code p0171 - refer to the rear cylinder bank

Jun 22, 2008 | 2002 Ford Explorer Sport

1 Answer

Code #P0171 & code #P0174


The most common problem on a Ford with these codes is deteriorated PCV hoses. Check the hoses from the PCV valve to the intake manifold. Pay special attention to the rubber elbows. They often crack on the inside curve and the crack is hard to see.

May 19, 2008 | 1999 Ford Explorer

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