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Po147 sensor 02 whear is it - 2002 Chevrolet Blazer

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Bank 1 is where # 1 plug is at on v6-v8- v10, as far as po147 goes, call auto zone and they will tell you witch one it is.

Posted on Nov 12, 2010

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Posted on Jan 02, 2017

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I have the trouble codes for my 2004 ford foucas..how do i fix the problem?


Well all three codes are for a problem with the heater circuit for the O2 sensors. And since all three sensors are not going to fail at the same time, I would assume the problem is in the wiring or the source of power for the heaters.
You'll have to find someone with a shop manual or buy a used one online to get the testing procedures.
The sensors each have a heater to allow them to start reading exhaust gas as soon as you start the engine.

Apr 14, 2013 | 2004 Ford Focus

1 Answer

Ox heater circuit bank 1 sensor 3 code po147


Normally you have one sensor in front of and behind the catalytic converter. And most Ford products have two cats. On your Ford you may have one in front on each bank and then one after the cat.
Number 3 would be after the cat converter.

Jan 21, 2013 | Cars & Trucks

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Replaced:plugs,wiresdistributor,fuel pump.truck wouldn't start before but now it starts but i am getting po135,po141,po147.po300 codes


P0135 means 0xygen heater circuit malfunction, P0141 mean 02 heater circuit bank1 sensor 2 (this is catalytic monitor) P0147 means 02 heater sensor circuit bank 1 sensor 3, P0300 is random misfire. You will get all the 02 code because of the misfire correct the misfire and the 02 should correct.We will start with the plug wire and make sure the firing order is correct 1996 chevy blazer that will make it a 4.3 engine size check the firing order firing order is 165432 also check the coil (it has a tendency to short you will know if it is) cansmo_181.gifcansmo_182.gifmake sure the distributor rotation is check

Sep 09, 2011 | 1996 Chevrolet Blazer

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Check engine light on 2000 chevy blazer tested as PO147 02 heater circuit


P0147 02 Sensor Heater Circuit Malfunction (Bank I Sensor 3) check this link for detailed explanations http://www.obd-codes.com/p0147 please take a moment to rate my reply and research Thanks Good Luck

May 08, 2011 | Chevrolet Blazer Cars & Trucks

1 Answer

A3 audi sports line fault code of po147 what is this


It's an 02 sensor (oxygen sensor) fault. One if your 02 sensors is bad and/or catalytic converter is bad.

Mar 11, 2011 | Audi A3 Cars & Trucks

2 Answers

Diagnostic code PO147 came up on my 98 chevy blazer, said it is a sensor heater circuit malfunction. I asked at the parts store, they don't know what a sensor heater is. Please advise. Thanks in...


Its HO2S HEATER CIRCUIT BANK 1 SENSOR # 3 its the one after the catailitc convertor its called a down stream There 4 all together 2 on the y pipe one each side one before the cat and one after the cat thats the one you need to replace hope this helps

Nov 05, 2010 | 2002 Chevrolet Blazer

1 Answer

Code PO147 02 heater circuit, bank 1 sensor 3 where is it located. 1996 camaro 3.8


basically it means the 02 sensor on bank 2 detected a lean condition. on v-6/ v-8/ v-10 is usually the side of the engine that does not have cylinder #1. In the vast majority of cases, simply cleaning the MAF sensor does the trick. also check vacuum lines. you can buy maf sensor cleaner at mostly all auto parts stores. just follow directions on can. check the maf sensor first.

Nov 01, 2010 | 1996 Chevrolet Camaro

1 Answer

Where is the O2 senser for engine code po147


I believe it's the O2 sensor after your Cat on the driver's side of the car. I believe your car should have a duel exhaust system and should have 6 O2 sensors.

Oct 05, 2009 | 1998 Chevrolet K1500

2 Answers

Where is the #3 bank 1 oxygen senser located on the exhaust system of my 1999 chevy s10 4x4 4.3 liter v6 pick up?


The oxygen sensor is located in the flow of exhaust and there will be two. the first is at the exit of the exhaust manifold where the head pipe attaches before the converter and the other is just after the cat converter.



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Sep 10, 2009 | Chevrolet S 10 Cars & Trucks

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