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
15,385

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
15,385

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

tenspeed
49,915

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

1 out of 1 people think this is helpful.
tenspeed
49,915

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
49,915

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
15,385

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

Related Questions

Mountaineer
Looking for a Used Mountaineer in your area?
CarGurus has 2,180 nationwide Mountaineer listings starting at $1,200.
ZIP:

Search Mercury Mountaineer Questions

Mercury Mountaineer Experts

#1 kbro
kbro
Reputation 350
#2 tennisshoes
tennisshoes
Reputation 110
#2 Tom Demyan
Tom Demyan
Reputation 110
View All

Related Models For Sale

Used Ford Explorer"
989 Great Deals out of 44,492 listings starting at $1,495
Used Jeep Grand Cherokee"
840 Great Deals out of 53,602 listings starting at $987
Used Chevrolet Tahoe"
829 Great Deals out of 32,074 listings starting at $1,795
Used Ford Expedition"
375 Great Deals out of 15,970 listings starting at $1,600
Used Honda Pilot"
426 Great Deals out of 23,777 listings starting at $3,450
Used Lincoln Navigator"
101 Great Deals out of 4,139 listings starting at $2,795
Used Toyota 4Runner"
272 Great Deals out of 12,718 listings starting at $1,595
Used Lincoln Aviator"
21 Great Deals out of 423 listings starting at $2,500
Used Nissan Pathfinder"
234 Great Deals out of 16,358 listings starting at $1,491
Used Dodge Durango"
303 Great Deals out of 18,946 listings starting at $1,200
Used GMC Envoy"
139 Great Deals out of 2,805 listings starting at $1,995
Used Ford Escape"
1,502 Great Deals out of 63,353 listings starting at $990
Used Cadillac Escalade"
241 Great Deals out of 7,086 listings starting at $2,950

Used Cars For Sale

2010 Mercury Mountaineer For Sale
11 Great Deals out of 128 listings starting at $10,995
2009 Mercury Mountaineer For Sale
34 listings starting at $10,995
2008 Mercury Mountaineer For Sale
8 Great Deals out of 212 listings starting at $4,995
2007 Mercury Mountaineer For Sale
13 Great Deals out of 261 listings starting at $5,500
2006 Mercury Mountaineer For Sale
12 Great Deals out of 261 listings starting at $3,950