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My cars o2 sensor has 4 wires which one is the signal wire and which one is the ground and its on a 2007 grand prix

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  • Cars & Trucks Master
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The four wires are Battery positive for heater circuit, heater ground , sensor ground, sensor wire with a volt meter this wire has about .5 volts with the key on engine off. purple wire ?

Posted on Apr 20, 2014

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6ya6ya
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Posted on Jan 02, 2017

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dustyboner
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SOURCE: Installing universal Oxygen sensor

here is the 97 civic electrical diagrams. after you download and unzip the file, try 17252.pdf.

Posted on Oct 11, 2008

jyeager178
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SOURCE: oxygen sensor 1999 hyundai accent

Bosch website........free

Posted on Mar 31, 2009

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SOURCE: Replacing 2004 Hyundia Elantra O2 Sensor

Had the same problem You need to go to dealer and order an O2 sensor with California emissions. The wire will be longer and fit into the prong

Posted on May 08, 2009

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Po136-o137 says change 02 sensor on bank 1 sensor2 I did but engine light is still on 2004 chevy tahoe


code p 0136 refers to heated oxygen sensor (HO2S) 2 bank 1 ---circuit malfunction===causes ---heating inoperative ---wiring---HO2S--- ECM
also refers to oxygen sensor (O2S0 2 bank 1---circuit malfunction===causes --- wiring---O2S ---ecm
it also refers to heated oxygen sensor (HO2S) 2 bank 1 ---no signal===causes ---wiring --- HO2S---
code p 0137 refers to HO2S 2 bank 1 ---low voltage -===causes --exhaust leak---wiring short to ground ---HO2S--- ECM
it also refers to O2S 2 bank 1---low voltage ===causes exhaust leak---wiring short to ground ---O2S ---ECM
to set you up here-- there are 4 oxygen sensors in the system
2 are heated oxygen sensors (HO2S) on in each exhaust manifold or exhaust pipe before the cat converter and
2 oxygen sensors (O2S) -- one in each exhaust pipe after the cat converters
heated oxygen sensors have 4 wires and O2S sensors normally only 2 wires
it is more that possible that you changed the wrong sensors and in the process damaged the delicate wires with the incorrect spanner being used

Jul 25, 2016 | 2004 Chevrolet Tahoe

1 Answer

Will not start p2045 p2197 p0190 p2247 p2245 p2248 p2249 p2518 comes up


code p2045 refers to reductant temperature sensor--high input==causes --wiring faulty sensor
code p2197 refers to heated oxygen sensor(HO2S)1 bank 2-- signal stuck lean===causes HO2S---fuel pressure---injectors---intake leak
also refers to oxygen sensor (O2s)1 bank 2 -signal stuck lean===causes--O2S--fuel pressure---injectors---intake leak
also refers to heated oxygen sensor (HO2S) 1 bank 2--implausible signal===causes wiring---short to ground--short to positive--HO2S---ECM
code po190 refers to fuel rail pressure (FRP) sensor-circuit malfunction===causes --wiring ---fuel rail pressure sensor---ECM
code p2247 refers to heated oxygen sensor (HO2s) 1 bank 1 reference voltage--open circuit===causes--wiring ---ho2s
also refers to o2s 1 bank 2 reference voltage ---open circuit===causes wiring---o2s
also refers to HO2S 1 bank 2 ---no signal===causes wiring--ho2s---ECM
code p2245 refers to HO2S 1 bank 1 --reference voltage --circuit low===causes--wiring short to ground--ho2s also refers to o2s 1 bank 1 circuit low===causes wiring short to ground--o2s
code p2248 refers to the ho2s I bank --performance problem===causes --wiring--ho2s
code p2249 has the same causes short to ground---ho2s and o2s
code p2518 refers to a/c refrigerant pressure sensor B ---circuit high===causes wiring short to positive--a/c refrigerant pressure sensor.
so after all that replace all the ho2s and o2s sensors using the correct tools so that the wiring is not damaged and check the wiring back to the ECM for burns and rub marks.

Dec 30, 2013 | Cars & Trucks

1 Answer

How many o2 sensors does my 2007 pontiac grand prix have. it is a v6 and does not have a supercharger


This car only uses two sensors, theres one on the rear manifold and the other after the converter on rear pipe in the rear of engine, here are diagrams to help you locate them, good day.johnjohn2_140.gifjohnjohn2_141.gif

Aug 12, 2011 | 2007 Pontiac Grand Prix GXP Sedan

1 Answer

What color Is the o2 sensor heater sure n the ground I got 2 red wires,a black wire ,n a Orange wire what is the heater wire and ground wire ?


I ASSUME you mean the rear oxygen sensor???? 1 red wire is the o2 signal, the other is the o2 heater ground. the Orange is heater power The red wire in cavity 3 is the heater ground (terminal 20 at ECM). . the #1 cavity is BLACK, #2 RED, #3 RED #4 ORANGE looking at the connector its hard to tell you over print, but #1 is upper right, 2 upper left, 3 lower right, 4 lower left.

Nov 16, 2010 | 2000 Hyundai Elantra

1 Answer

How do i connect a 2000 sunfire o2 sensor, which has 4 wires to a 2 wire harness?


You sure you have the right harness you are trying to attach to? Most have 3 or 4 wires. Heater wire, ground, and signal wire. The 4 wire setup has two heater wires. I don't believe they make a two wire o2 connector because it wouldn't have a heating element or signal wire, has to have ground.

Sep 05, 2010 | 2000 Pontiac Sunfire

1 Answer

P0102 Grand Prix


P0102 is ---- mass or volume air flow circuit, low input.
Check the wires going to the maf sensor and at the connection. If all seems ok, you might need a new sensor, seeing how it ran a little better when disconnected.

Jul 15, 2009 | 2003 Pontiac Grand Prix

1 Answer

1998 pontiac grand prix gt service engine soon light just came on. Auto Zone did a test and came back with a code. It said ''Fuel Air Metering P1133''. Can you tell me what this is?


P1133 HO2S Insufficient Switching Sensor 1

THIS IS THE O2 SENSOR CLOSEST TO THE ENGINE AND BEFORE THE CONVERTER.

AN EXHAUST LEAK OR A BAD SENSOR COULD BE THE PROBLEM.

CHECK THE O2 SENSOR WIRING FOR DAMAGE, CORROSION, ETC.

Jul 10, 2009 | 1998 Pontiac Grand Prix

2 Answers

CB Radio in a 2007 Pontaic Grand Prix


Easy to hardwire. Run the ground wire to anything metal under the dash, the power wire can be tapped into any fuse in the fusebox with a small adaptor available at any auto supply store.

Jul 02, 2009 | 2007 Pontiac Grand Prix GXP Sedan

1 Answer

O2 sensor


Most likely t will work, just make sure you get the O2 ground,the heater element and signal return circuits connected correctly.

Dec 16, 2008 | 1998 Audi A4

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