Question about 2002 GMC Envoy

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Where is oxygen sensor located on 2002 envoy - 2002 GMC Envoy

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Between the exhaust manifold and the first box(cat)1.1/2"round and 2"long with a wire at the top.....

Posted on Aug 24, 2010

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: outside temperature on rearview mirror is sayin OC on 2002 envoy

Have you used the handy search feature? You would find that this is likely caused by one of 2 things. First, the ambient air temperature sensor may have gone bad. Secondly, wiring from the sensor to the mirror may have gone bad. Either way, you would get OC (which stands for OPEN CIRCUIT).
Found this solution on:
http://forums.trailvoy.com/showthread.php?t=54333KQ3SYK

Posted on Apr 03, 2009

  • 740 Answers

SOURCE: location of oxygen sensor

All of your oxygen senors are located in your exhaust system they are 4 of them on this vehicle. They are all screwed in to exhaust pipes with wire connections on them. All that's needed to replace them is an oxygen sensor socket and a ratchet this can be bought at any auto parts store. Good luck and thanks for using FIX YA

Posted on Mar 25, 2009

  • 133 Answers

SOURCE: Jaquar X Type Oxygen Sensor

two at the front on the exhaust cat and two on the rear, and yes if there tight

Posted on Dec 31, 2008

BRADLEYFRANC
  • 104 Answers

SOURCE: Location of Oxygen sensor Bank 1 # 1 in a 2002 VW

could be the lambda probe located on the exhaust.

Posted on Sep 16, 2009

jasperoni
  • 203 Answers

SOURCE: How To Change Oxygen Sensors in 2002 Mercedes C240 Sedan?

I do not know the part numbers but you have 4 sensors. 2 pre and 2 post catalytic converter. The pre sensors are the most sensitive and are generally the ones to fail. the rear sensors usually have a heater circuit problem. If your just replacing them for routine service interval I would just do the fronts. They connect to the engine wire harness in the front of the transmission pan. You may need an o2 sensor socket to remove the fronts. They are just a 22mm. in size.

Posted on Oct 18, 2009

Testimonial: "Thank you for the reply...I appreciate your time! Will replace front O2 sensors and see if check engine light goes out...thanks again...Jamie."

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2002 santa fe 4 cyl. o2 sensors


oxygen sensor ( O2) are located after the cat converter
the one in the exhaust manifold is a heated oxygen sensor (HO2S) and is a totally different operation sensor

Apr 03, 2017 | 2002 Hyundai Santa Fe

1 Answer

How Many Oxygen Sensors On A 2002 Buick Lesabre?


oxygen sensors ( O2S) are located after the cat converter/s
heated oxygen sensors (HO2S) are located in the exhaust manifold/s before the cat converters
so on a 4cyl/in line 6 cyl engine --1 of each
on a v6/v8 --2 of each

Apr 01, 2017 | 2002 Buick LeSabre

1 Answer

Trying to locate the oxygen sensor in a envoy


There are two O2 sensors, one on the exhaust manifold on the right side (passenger side) of the engine, and one just after the catalytic converter.

Feb 22, 2014 | GMC Envoy Cars & Trucks

1 Answer

Where are the oxygen sensors located on a 2006 gmc envoy


We have 2 locations, upstream before the CAT, and dowstream below the CAT. The upstream is on the passenger side at the exaust manifold very easy to access from the top. The downstream one is after the cat, accessible from underneath. The connector for this one is a PIA, up near the top of the tranny. But doable if you're in the right position.

Jan 11, 2014 | 2006 GMC Envoy

1 Answer

2002 Toyota Camry oxygen sensor Bank 1 Sensor 2 location


go to manifold follow it till you find the downstream sensor there you go

Jul 21, 2012 | Cars & Trucks

1 Answer

I need a diagram of the exhaust system on a Mazda 626


0996b43f80203328.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Component Location Chart-2000 MPV

1 PCM 2 Mass air flow (MAF)/intake air temperature (IAT) sensor 3 Throttle position (TP) sensor 4 Fuel tank pressure sensor 5 Engine coolant temperature (ECT) sensor 6 Crankshaft position (CKP) sensor 7 Camshaft position (CMP) sensor 8 Knock sensor 9 Heated oxygen sensor (HO2S) (front, LH) 10 Heated oxygen sensor (HO2S) (front, RH) 11 Heated oxygen sensor (HO2S) (rear, LH) 12 Heated oxygen sensor (HO2S) (rear, RH) 13 EGR boost sensor 14 Power steering pressure (PSP) switch 15 Main relay


0996b43f8020330c.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Component Location Chart-2001 MPV

1 PCM 2 Mass air flow (MAF)/Intake air temperature (IAT) sensor 3 Throttle position (TP) sensor 4 Engine coolant temperature (ECT) sensor 5 Crankshaft position (CKP) sensor 6 Camshaft position (CMP) sensor 7 Knock sensor 8 Heated oxygen sensor (HO2S) (front, LH) 9 Heated oxygen sensor (HO2S) (front, RH) 10 Heated oxygen sensor (HO2S) (rear, LH)* 11 Heated oxygen sensor (HO2S) (rear, RH)* 12 EGR boost sensor


0996b43f8020330f.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Component Location Chart- 2002-06 MPV

May 22, 2010 | 2004 Mazda MPV

1 Answer

2004 GMC Envoy check engine light remains illuminated. Diagnostics revealed codes: P1133 and P0128. P1133 points to a heated oxygen sensor and P0128 indicates a possible defective thermostat. The O2 sensor...


Leave 02 sensor alone ,it is doing it's job . It is heated up because of lean fuel mixture due to incorrect engine temp.,replace thermostat before looking further.

Jan 20, 2010 | 2004 GMC Envoy

1 Answer

Outside temperature on rearview mirror is sayin OC on 2002 envoy


Have you used the handy search feature? You would find that this is likely caused by one of 2 things. First, the ambient air temperature sensor may have gone bad. Secondly, wiring from the sensor to the mirror may have gone bad. Either way, you would get OC (which stands for OPEN CIRCUIT).
Found this solution on:
http://forums.trailvoy.com/showthread.php?t=54333KQ3SYK

Mar 22, 2009 | 2002 GMC Envoy

2 Answers

Possible o2 sensor 2002 GMC Onvoy


O2 sensors indicate unburned oxygen in the exhaust sysytem. Bad O2 sensors causes fuel mixture to run rich. It causes fuel consumption and your emmissions test will not pass. Check for vacuum leaks check the manifold.check for a misfiring cylinder, a burned exhaust valve that is leaking compression. replace the O2 sensor or sensors. Some cars have 2 . One for the intake another for the out take. If it reads a code for the Map sensor along with the O2. It is better ifyou replace both sensors. But I think that the problem lies in the oxygen sensor or sensors. Pleae vote my answer if this helps.

Jan 15, 2009 | 2002 GMC Envoy

1 Answer

Check Engine Light?


there are 3 one on each side of eng. on the Y pipe one behind the cat. convertor. not to hard change

Oct 21, 2008 | 2004 GMC Envoy

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