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Danop
Dodge Dakota
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10/07/2002
10:37:40
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 Subject: 2002 4.7 check eng code P0161
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where is this sensor located? DTC title is Oxygen sensor 2/2 heater element performance or rationality malfunction?
it would be nice if they used english!
PS: I had JBA headers and gibson exhaust installed about 3000 miles ago?
tahank you
Dan
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Danop
Dodge Dakota
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10/07/2002
11:11:43
|  RE: 2001 4.7 check eng code P0161
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ADDITIONAL INFORMATION
it is a 2001 not a 2002
the check engine light came on at 36400 miles!
the dealer wants $75 just to plug into the computer!
I have been unable to locate a parts store that carries the O2 sensors for a 2001
HELP
Dan
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circus boy
Dodge Dakota
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10/07/2002
13:14:04
|  RE: 2002 4.7 check eng code P0161
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i just has the same code. 2001 rc 4.7. i took it to autozone and the put it on a computer for free.
yes for free. the 02 sensor is the last one after the last cat. this is a dealer part. my dealer wanted $101 for this sensor. i just went to the dealer to pick it up and my check engine light did not come on. what the f___. i think i will replace it anyway. i think some other auto parts stores will put your truck on the computer for free as well. good luck
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Danop
Dodge Dakota
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10/07/2002
13:23:39
| RE: 2002 4.7 check eng code P0161
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Thank you for the help, I talked to Autozone and gave them the code they said that it was the #2 bank O2 sensor?
I found another posting called MIL LIGHT BLUES that said it was the O2 sensor on the upper right Exhaust? PN 56028586aa is that the one you bought?
I had my battery fail a week ago so my PCM was cleared but the fault came right back
Dan
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Mud
Dodge Dakota
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12/26/2004
14:06:55
| RE: 2002 4.7 check eng code P0161
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Message:
For me it was O2 sensor on pass. side cat. Fixed under warranty at dealership. It's not a big deal and there is a post here for $58.00 sensors for those of you out of warranty. Try removeing and cleaning it and if that doesn't work it's just a simple remove and replace job. Several posts tell how to re-set ck engine light. Also, where are some of you finding four cats? I have a California spec truck with only two.
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runinrich
Dodge Dakota
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12/27/2004
00:23:26
| RE: 2002 4.7 check eng code P0161
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the o2s are to be covered by the dealer under the federal emission guidelines for 8yrs-80,000miles.(pcm,cat,etc..)
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JasonB
Dodge Dakota
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12/27/2004
08:52:53
| RE: 2002 4.7 check eng code P0161
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runinrich
The emissions warranty covers oxygen sensors only in some states. Federal emissions laws do not include them, but some state emissions laws do.
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Polky
Dodge Dakota
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5/09/2005
16:05:12
| RE: 2002 4.7 check eng code P0161
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I just tried to get my inspection sticker and failed the OBDII readiness test due to the p0161 code. Paperwork said "O2 Sensor Heater Circuit (Bank2 Sensor 2)". I checked the fuse box at the O2 fuse and looks to be fine. I looked for loose connections under the truck where I thought the O2 sensors where, but I wanted to make sure. When looked at the headers, you follow the pipe away from the engine down to the collector and just past the collector (on each side) there is a small oval shaped piece. I thought that would be the first two catalytic converters. On each one, there are two connectors with wires coming out that I thought would be the O2 sensors. Is all of this information correct???
If so, that means that I had four O2 sensors (2 on each side). After following the exhaust out of each cat, you get to the y-pipe and a couple of feet after the y-pip you get to another larger piece. I what is this piece? It's before you get to the actual muffler. Is that the resonator?
I know I asked a lot of questions, but eventually I want to customize my whole exhaust and I'm learning as much as I can. My final question is what, if anything, can be removed and still pass emissions and be legal with no MIL lights on?
By the way, I have a 2001 4.7, RC, manual, with a basic single in/dual out flowmaster to hold me over until I get the true duals. All other info. is greatly appreciated.
Jason
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jimlhe
Dodge Dakota
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5/09/2005
23:38:30
|  RE: 2002 4.7 check eng code P0161
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Message:
My Dak 2000 4.7 also has 4 O2 sensors. I was having similar problems as you describe. My code was P0133 which refers to the O2 sensor Bank 1/Sensor 1. This is the one above the Cat Converter on the driver side. I think your code refers to the sensor after the Cat Converter on the Pass Side. I found my sensor clogged with soot. Replaced and all is good now.
Hope this helps....
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A. L. Saenz
Dodge Dakota
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5/08/2007
22:48:30
|  O2 sensors
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What is the easiest way to replace the O2 sensor in a 2001, 4.7 Dodge Dakota?
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Polky
Dodge Dakota
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5/08/2007
23:08:59
| RE: 2002 4.7 check eng code P0161
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Message:
Wow, it's been a while since this post. Anyway, it was pretty straight forward. Just find which one is bad, then unscrew it and unplug it. Plug up the new one and screw it back in. That's the basics, it's actually more too it. I used the Haynes book from Autozone to do it. It has much more detailed instructions, and plus it tells you how to do just about everything else you'll ever want to the engine. Suggest getting it if you plan on doing most of the maintenance yourself. If you have more problems, let me know and I may be able to find the instructions that I used.
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JerryM
Dodge Dakota
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5/12/2007
15:19:53
| RE: 2002 4.7 check eng code P0161
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I changed the drivers side pre-cat 02 sensor a few years ago on my 2000 4.7 liter. Bought a OEM replacement online for 75.00
Get one with the connector attached so you do not have to do any splicing of wires. If you follow the wires up into the harness you will find an electrical connector.
Also spray the sensor threads down with some penetrating oil and only use the box end 6 point wrench, not open end wrench.
JM
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Jeromy
Dodge Dakota
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5/29/2007
20:23:52
| O2 sensor problems
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Message:
The check engine light recently came on on my 2001 dakota (4.7L). I had the local autoparts store plug into the computer. The Bank 2 Sensor 1 O2 sensor is bad. Which sensor is this (DS or PS)? I am assuming it is the pre cat location. PLease, correct me if I'm wrong.
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modain
GenIII
5/30/2007
00:23:38
| RE: 2002 4.7 check eng code P0161
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Message:
Bank: 1 = DS, 2 = PS
Position: 1 = pre cat, 2 = post cat
What's your left foot doing?
=========================================
2002 Graphite QC SLT Plus, 4.7L, NV3500, Superchips 3715, 3.92 LSD, loads o'fun...
2001 Patriot Blue Durango SLT, 4.7L, 45RFE, Superchips 3715, 3.55 Open (for now)
1999 Forest Green Dakota RC Sport, 2.5L, NV1500, 3.55 Open
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Massey
Dodge Dakota
JOIN HERE
5/30/2007
17:28:22
| RE: 2002 4.7 check eng code P0161
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Message:
I just took a look under my '04 and found 4 sensors but it looks like those "cats" are just expantion chambers or premufflers of some sort. I would think that if they were cats they would have some type of heat shield around them due to the amount of heat that cats generate. After my "Y" pipe there is a standard cat with a heat shield. Maybe this is some way of regualting the exhaust temp before it enters the cat to assist in the emissions. Not sure but I hope that I dont have to replace them any time soon they dont look like a fun thing to mess with.
Massey
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Kowalski
GenIII
5/31/2007
17:16:43
| RE: 2002 4.7 check eng code P0161
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Message:
No - those really are cats, called "precats"; not expansion chambers or "premufflers". They perform as cats, that's why the sensors are there. Cats work best when hot, hence their proximity to the cylinders. Up higher than any tall grass you'd be likely to drive over, so no need for heat shields.
Lead, follow, or get out of the way
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DAKOTA SANFOR
Dodge Dakota
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6/05/2007
11:04:31
| nice
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nice truck but mine has a super charger in it and has nos
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Mosley
Dodge Dakota
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3/13/2010
13:34:09
| 2001 Jeep Grand Cherokee 4.7L
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I have a 2001 jeep grand cherokee, I have a check engine light on,I got the code for it which is PO161. I was told it was the bank-2 o2 sensor. my question is this truck has 4 o2 sensors, I was told it was the downstream sensor, but which one passenger side of the driver side. Can someone tell me which one to buy?
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daddio
Dodge Dakota
JOIN HERE
3/13/2010
14:52:49
| RE: 2002 4.7 check eng code P0161
IP: Logged
Message:
You're answer is 4 post above yours.
modain
GenIII
5/30/2007
00:23:38
RE: 2002 4.7 check eng code P0161
IP: Logged
Message:
Bank: 1 = DS, 2 = PS
Position: 1 = pre cat, 2 = post cat
What's your left foot doing?
=========================================
2002 Graphite QC SLT Plus, 4.7L, NV3500, Superchips 3715, 3.92 LSD, loads o'fun...
2001 Patriot Blue Durango SLT, 4.7L, 45RFE, Superchips 3715, 3.55 Open (for now)
1999 Forest Green Dakota RC Sport, 2.5L, NV1500, 3.55 Open
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The Todd
Dodge Dakota
JOIN HERE
4/21/2010
10:58:25
| RE: 2002 4.7 check eng code P0161
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Message:
I have to get rid of my current P0161, and P0551.
I tried cleaning the connector of the power steering switch, and tried cleaning the O2 sensor. Both codes came back in a few days.
I ordered online thru the parts bin. com
Oxygen Sensor 2001
Dodge Dakota Bosch Oxygen Sensor Dakota Bosch Price: $53.95 Qty: 1.00 Part #: W0133-1786620
Power Steering Pressure Switch 2000 - 2001
Dodge Dakota Standard Power Steering Pressure Switch Dakota Standard Price: $22.52 Qty: 1.00 Part #: SIPSS13
Should take care of them, until next time......
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The Todd
Dodge Dakota
JOIN HERE
4/23/2010
21:04:21
| RE: 2002 4.7 check eng code P0161
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Message:
I installed a Bosch O2 sensor to get rid of the P0161 code today. Also replaced the power steering sensor b/c of the P0155 code also.
Apparently, the before and after bosch sensor are the same part number?
I reset the PCM with the removing the (-) cable, turning the key, etc.
At first, for the first time in nearly 10 years I've owned this 4.7 Dak, it ran like crap! It was as if it was starving for gas.
I took it to the gas station, and filled the tank thinking I have been having some issues when the tank gets low. I'm thinking it is a partially clogged internal filter on my internal fuel pump after 10 years.
On the way home, it starts running well again!
I think it was more the PCM relearning, etc.
All seems to be good, and no codes/MIL lights either!
01 SLT QC, 4.7 manual, 3.92 LSD, 2WD
Tire/Handling, R/T sway bars
Trailer Towing
HO cams,
HO intake,
Ported stock 68mm TB,
Homebrew 'true' CAI, w/ K&N
No belt driven clutch or fan
180 T-Stat
No Third Cat.
SC Tuner
Max dyno
227 RW HP
300 RW TQ
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