the check engine light came on in my mercury mountaineer that read low heated and heated oxygen sensor for the sam sensor. what can cause this

daddy05
0

Asked by daddy05 Apr 20, 2013 at 10:40 PM about the 2003 Mercury Mountaineer 4 Dr STD AWD SUV

Question type: Maintenance & Repair

8 Answers

kbro
17,115

Can you post the code cuz that description im not aware of. Is it a heater circuit code for a oxygen sensor?

daddy05
0

p0152 heated oxygen sensor bank 2 sensor 1 and p2197 lack of heat oxygen sensor bank 2 sensor 1

kbro
17,115

Replace the sensor. bank 2 sensor 1 is sensor before the converter on the drivers side.

judge_roy
Not Active

http://www.ebay.com/itm/2003-2004-MERCURY-MOUNTAINEER-NTK- NGK-O2-OXYGEN-SENSOR-/350412935212? pt=Motors_Car_Truck_Parts_Accessories&hash=item51963d102c&vxp= mtr

1 out of 1 people think this is helpful.
tenspeed
57,075

P0152 MERCURY - O2 Sensor Circuit High Voltage Bank 2 Sensor 1

1 out of 1 people think this is helpful.
tenspeed
57,075

Possible causes - Faulty Front Heated Oxygen Sensor Bank 2 - Intake air leaks may be faulty - Exhaust gas leaks - Front Heated Oxygen Sensor Bank 2 harness is open or shorted - Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection - Inappropriate fuel pressure - Faulty fuel injectors

1 out of 1 people think this is helpful.
tenspeed
57,075

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed- end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

2 out of 2 people think this is helpful.
kbro
17,115

When it sets a heater circuit code circuit for just one sensor ya just put the sensor in it they are not expensive and there is no need for extensive diag.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Mountaineer
Looking for a Used Mountaineer in your area?
CarGurus has 1,889 nationwide Mountaineer listings starting at $1,195.
ZIP:

Search Mercury Mountaineer Questions

Mercury Mountaineer Experts

#1 kbro
kbro
Reputation 370
#2 Tom Demyan
Tom Demyan
Reputation 200
#3 tennisshoes
tennisshoes
Reputation 110
View All

Related Models For Sale

Used Ford Explorer"
981 Great Deals out of 53,023 listings starting at $990
Used Lincoln Navigator"
158 Great Deals out of 4,808 listings starting at $3,288
Used Ford Expedition"
587 Great Deals out of 18,333 listings starting at $1,995
Used Nissan Pathfinder"
333 Great Deals out of 21,639 listings starting at $1,999
Used Lincoln Aviator"
12 Great Deals out of 368 listings starting at $3,850
Used Ford Escape"
1,245 Great Deals out of 60,787 listings starting at $1,400
Used Cadillac Escalade"
262 Great Deals out of 6,794 listings starting at $2,995
Used Dodge Durango"
440 Great Deals out of 21,187 listings starting at $1,000
Used Chevrolet Tahoe"
921 Great Deals out of 28,225 listings starting at $2,800
Used Ford F-150"
2,908 Great Deals out of 150,773 listings starting at $1,500
Used Chevrolet TrailBlazer"
279 Great Deals out of 5,717 listings starting at $1,800
Used Jeep Grand Cherokee"
1,147 Great Deals out of 56,297 listings starting at $999
Used GMC Envoy"
115 Great Deals out of 2,413 listings starting at $1,995
Used Toyota 4Runner"
352 Great Deals out of 11,347 listings starting at $2,487

Used Cars For Sale

2010 Mercury Mountaineer For Sale
7 Great Deals out of 137 listings starting at $10,499
2009 Mercury Mountaineer For Sale
6 Great Deals out of 35 listings starting at $10,994
2008 Mercury Mountaineer For Sale
13 Great Deals out of 198 listings starting at $5,999
2007 Mercury Mountaineer For Sale
18 Great Deals out of 248 listings starting at $5,900
2006 Mercury Mountaineer For Sale
13 Great Deals out of 242 listings starting at $4,500