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BB2DAK
Dodge Dakota
JOIN HERE
9/08/2003
13:36:47
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 Subject: 2001 4.7 - Check Engine Code P0174 ??
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Message:
Yesterday, the check engine light came on in my
2001 Dakota Quad Cab 4.7l.
Gas mileage has dropped significatly, about
7 mpg less than before.
I checked the codes using the key on/off sequence,
and the Odometer showed P0174 in the window.
I looked this up, and I found:
P0174: H02S1 Fuel lean Sensor1, Bank2
The instructions said to check for a leaking exhaust,
or to check the MAF sensor.
What I have been reading about this truck is taht is does not have
a MAF sensor, but it has a MAP instead.
Anybody have any suggestions on what to look for to
resolve the P0174 Code ?
2001 Quad Cab SLT+ 4.7L, 5-Spd, 3.55 Lsd
ARE Cap, ArmaCoat Bed-liner, Pilot PILPL119X Fog Lights
Autolite 3923's, IAT Adjuster, K&N Drop-in w/modified intake
Roadmaster Active Suspension
http://members.aol.com/bsbets/truck/intake4.jpg
http://www.dodgedakota.net/albums/viewer/101.htm
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teamfast
Dodge Dakota
JOIN HERE
9/08/2003
16:44:01
|  RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
as far as the 01 manual states its "a lean air/fuel mixture has been indicated by an abnormally rich correction factor."
I would guess o2 sensors. and blame the iat adjuster. Your fooling the computer to run richer with the adjuster, even though it isnt required, what monitors this? the o2 sensors.Anyone else?
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BB2DAK
Dodge Dakota
JOIN HERE
9/08/2003
17:05:15
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
I thought about the IAT adjuster, so I turned it off
and cleared the codes. But the same code came back up
stating that the computer believes the mixture is lean
and tries to compensate by richening the mixture.
The result is bad mileage, and a rotten egg smell
at the tailpipe.
2001 Quad Cab SLT+ 4.7L, 5-Spd, 3.55 Lsd
ARE Cap, ArmaCoat Bed-liner, Pilot PILPL119X Fog Lights
Autolite 3923's, IAT Adjuster, K&N Drop-in w/modified intake
Roadmaster Active Suspension
http://members.aol.com/bsbets/truck/intake4.jpg
http://www.dodgedakota.net/albums/viewer/101.htm
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Kowalski
Dodge Dakota
JOIN HERE
9/08/2003
17:13:21
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
Since the poblem sounds like its related to emissions related components, it should be covered. You might want to pull the IAT adjuster before the dealer sees it. Why not let them fix it and let us know what it was ?
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BB2Dak
Dodge Dakota
JOIN HERE
9/09/2003
08:59:12
|  RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
Last night, I decided that it was time to change
my Autolite 3923's, even though I did not think that
this problem was related. I had 35,000 miles on
the copper plugs.
In the process of changing the plugs, I found that
a 3/4" vacuum hose that runs from the air cleaner box
to the firewall / drivers side of the engine had
come loose. I am assuming that the vacuum loss could
have caused the engine code.
I reset the codes, and drove to work today.
So far the engine has not thrown any codes at me.
I hope this fixes it.
Thanks for your help.
2001 Quad Cab SLT+ 4.7L, 5-Spd, 3.55 Lsd
ARE Cap, ArmaCoat Bed-liner, Pilot PILPL119X Fog Lights
Autolite 3923's, IAT Adjuster, K&N Drop-in w/modified intake
Roadmaster Active Suspension
http://members.aol.com/bsbets/truck/intake4.jpg
http://www.dodgedakota.net/albums/viewer/101.htm
|
BB2Dak
Dodge Dakota
JOIN HERE
9/10/2003
09:04:47
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
HELP !
The Engine Code P0174 came back.
The truck is running VERY RICH.
If I goose the throttle, it spits black carbon out
of the tailpipe all over my driveway.
I checked everywhere for more vacuum leaks, and
have not found any.
I am not sure if I should replace the O2 sensor next,
or what would be causing this problem.
I think that the O2 sensor should notice that the
truck is running far too rich, and correct it.
Unless there is another sensor that overrides
the O2 sensor.
ANY IDEAS ???
2001 Quad Cab SLT+ 4.7L, 5-Spd, 3.55 Lsd
ARE Cap, ArmaCoat Bed-liner, Pilot PILPL119X Fog Lights
Autolite 3923's, IAT Adjuster, K&N Drop-in w/modified intake
Roadmaster Active Suspension
http://members.aol.com/bsbets/truck/intake4.jpg
http://www.dodgedakota.net/albums/viewer/101.htm
|
teamfast
Dodge Dakota
JOIN HERE
9/10/2003
17:30:18
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
alright, how many miles or KM's on the truck? o2 sensors should be inexpensive, only prob is i think we have 3. get back to us.
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BB2Dak
Dodge Dakota
JOIN HERE
9/11/2003
11:09:29
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
I went to Autozone, and they pulled the codes.
The also saw P0174 on their reader.
They told me that this points to O2 Sensor Bank #2.
O2 Sensor Number 2 is on the drivers side behind the cat.
I couldn't believe that this truck has 3 cats, and
4 O2 sensors on it.
By the way, no one sells an OE O2 sensor for this
truck except for the dealer. The dealer wants
$145.25 for one O2 sensor.
I tried to get the dealer to replace it under the
emmisions warranty, but since I have 40,000 miles
on my truck, it is out of warranty.
The truck had 3/36,000 bumper to bumper warranty.
Emissions warranty on everything is 2/24,000.
Extended emissions warranty for 8/80,000
is only for the PCM, and Cat.
I think I may buy a universal O2 sensor and
splice the connector from my failed sensor to
new O2 sensor. This way I can connect the universal
up to my truck without touching the wires on the truck. Autozone sells the universal sensor for $69.
2001 Quad Cab SLT+ 4.7L, 5-Spd, 3.55 Lsd
ARE Cap, ArmaCoat Bed-liner, Pilot PILPL119X Fog Lights
Autolite 3923's, IAT Adjuster, K&N Drop-in w/modified intake
Roadmaster Active Suspension
http://members.aol.com/bsbets/truck/intake4.jpg
http://www.dodgedakota.net/albums/viewer/101.htm
|
Jacque
Dodge Dakota
JOIN HERE
9/11/2003
12:09:33
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
Take the O2 sensor out. Look at it. If it appears to have some contamination on it, then take some carb cleaner or brake clean and spray on it. Wipe it clean. Sometimes, but not all the time the sensor will be dirty and it has not gone bad. With no more miles than you have I would think that this is the case that you have some contamination on one of them. Also seeing how you have moved the IAT sensor which will richen it up considerably. A lot of people don't know you can clean the O2 sensor.
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Jacque
Dodge Dakota
JOIN HERE
9/11/2003
12:09:39
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
Take the O2 sensor out. Look at it. If it appears to have some contamination on it, then take some carb cleaner or brake clean and spray on it. Wipe it clean. Sometimes, but not all the time the sensor will be dirty and it has not gone bad. With no more miles than you have I would think that this is the case that you have some contamination on one of them. Also seeing how you have moved the IAT sensor which will richen it up considerably. A lot of people don't know you can clean the O2 sensor.
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BB2Dak
Dodge Dakota
JOIN HERE
9/12/2003
13:50:16
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Arrgh !!!
I bought the universal O2 sensor and installed
it on my truck, and no difference.
I checked the O2 sensor on the passenger side
(behind the cat), and it was coated with carbon.
I put the new O2 sensor on the passenger side, and
the cleaned sensor on the driver side, and it still
show P0174 (lean on bank #2).
I also believe that autozone lead me to the wrong
O2 sensor. If appears that Bank#2 is the passenger
side, and Bank#1 is the driver's Side.
I plan to pull the upstream O2 sensor on the
passenger side (before the cat) to inspect and
clean it if necessary.
I found a post on another site for P0171,
which is lean Bank#1, and they suggested
Possible causes:
- Fuel filter/pressure regulator (high pressure)
- Kinked/restricted fuel supply line
- TPS voltage greater than 1.1 volts with throttle closed
- Fuel pump inlet strainer plugged
- Fuel pump module
- MAP Sensor (Out of calibration)
- TPS voltage change not smooth
- ECT Sensor (Out of calibration)
- Fuel pump capacity (volume) out of specs
- Other engine mechanical problem
Any ideas on how to check the MAP, TPS, and ECT
Sensors to see if they are in calibration ?
2001 Quad Cab SLT+ 4.7L, 5-Spd, 3.55 Lsd
ARE Cap, ArmaCoat Bed-liner, Pilot PILPL119X Fog Lights
Autolite 3923's, K&N Drop-in w/modified intake
Roadmaster Active Suspension, Timbren load boosters
http://members.aol.com/bsbets/truck/intake4.jpg
http://www.dodgedakota.net/albums/viewer/101.htm
|
teamfast
Dodge Dakota
JOIN HERE
9/13/2003
00:51:51
| RE: 2001 4.7 - Check Engine Code P0174 ??
IP: Logged
Message:
Remember that the code wont dissapppear until three trip cycles. A day or so, unless you reset the pcm. How are the connections on the iat. Consider moving it back to stock and cleaning it
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super dak
Dodge Dakota
JOIN HERE
9/14/2003
09:28:36
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
what are your little tricks to get the code i'm really curious to know
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BB2Dak
Dodge Dakota
JOIN HERE
9/16/2003
17:19:46
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
Well, I finally got it fixed !
I thought about the other sensors on the truck, and
decided that if it was one of those, that BOTH BANKS
would be reporting a problem, not just bank #2.
I went back to the Oxygen sensor search.
I finally settled down to swapping sensors from
Bank #2 (passenger side) to Bank #1 (drivers side)
one at a time until the engine code showed
Bank #1 lean >P0171<.
This pointed me to the Oxygen sensor on Bank #2
(passenger side) before the catalytic convertor.
I replaced this O2 sensor, and the code went away.
However, while working on this problem, I noticed
that the A/C drain drips right onto the O2 sensors
on the passenger side cat. I bought a 1/2" PVC
street elbow, and slid it onto the A/C drain.
I then connected a 2 foot piece of
3/4" flexible conduit to the PVC elbow, and ran
the conduit down below the cat so that it drains
onto the ground.
The conduit is rated for 80 degrees Centigrade, and
hopefully it is far enough away from the exhaust
so that it doesn't melt.
2001 Quad Cab SLT+ 4.7L, 5-Spd, 3.55 Lsd
ARE Cap, ArmaCoat Bed-liner, Pilot PILPL119X Fog Lights
Autolite 3923's, K&N Drop-in w/modified intake
Roadmaster Active Suspension
http://members.aol.com/bsbets/truck/intake4.jpg
http://www.dodgedakota.net/albums/viewer/101.htm
|
teamfast
Dodge Dakota
JOIN HERE
9/17/2003
01:12:00
| RE: 2001 4.7 - Check Engine Code P0174 ??
IP: Logged
Message:
ive heard of that problem before. Hope it works out for you
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trialsmm
Dodge Dakota
JOIN HERE
1/07/2008
12:59:15
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
I too have a 2001 4.7 Quad now with code P0174.
I installed a K&N code air system about a year
ago. After reading the problems with oiled air filters, I have removed this K&N hype. The only thing it did for my truck was make more noise
at WOT. And screwed up my oxygen sensors.
I pulled both O2 sensor on the passengers side, yes they were carboned up. CLeaned, cleared P0174 code, drove it for 15 miles and code came back on. I just purchased a before Cat. sensor
from Advance Auto and I will replace it this afternoon. I hade to pull the fender liner off to get to the upper O2 senser. I purchased plastic blind rivets also from Advance.
The dealer wanted $8.00 ea. for a plastic rivet!!!
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TexasTodd
Dodge Dakota
JOIN HERE
1/07/2008
14:25:35
|  RE: 2001 4.7 - Check Engine Code P0174 ??
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It's hard to get to, but I did it without taking any fender skirting off. I too was tripping this code months ago.
After buying and NOT installing an after market, O2 sensor (you had to splice the wires), I ended up having a factory one shipped to me.
Someone on this site told me about something a site that had good prices on factory parts. I can't remember the name of it now, darn it.
I called, and it's a DODGE DEALER!, that has excellent prices on stock factory parts.
It was around $70US shipped. For the factory part. I saved alot of money.
And, when I didn't get it pugged in all the way and thought I did, I called them. They were VERY helpful, and said the tech said to check that it was plugged in all the way. Feeling insulted, I checked, and sure enough, that fixed it on the new O2 sensor.
Then, they called ME back the next day, to see if it had fixed it or not!!
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JerryM
Dodge Dakota
JOIN HERE
1/08/2008
07:51:16
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
I also know of a strange problem with the 4.7 liter. My 2000 started running very rich with soot coming out of the tailpipes.The power steering pump discharge switch blows and leaks ps fluid down the drivers side o2 harness and fouls the sensor on that side. Replaced the o2 sensor and power steering switch, been OK now for about 4 years, but something to consider and check.
Sounds crazy but true.
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trialsmm
Dodge Dakota
JOIN HERE
1/08/2008
09:28:03
|  RE: 2001 4.7 - Check Engine Code P0174 ??
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Buy the time I got home, my truck was blowing out
black smoke and eating the gas!
I changed the front oxygen sensor on the passengers side and cleaned the back sensors last nite. Reset the 'check engine' light and so far so good:)
WOW, it's a bear to change to front O2 sensor, I almost gave up. But I did remove the inner fender shield to do it,,,,,,,,,,but still hard to
get to the connector.
I used a Bosch universal O2 sensor. The O2 sensor Advanced Auto sold me was the wrong, so I went to three parts stores before settling for the universal type.
I purchased my Quad new and it just turned 88K miles. I emailed K&N a nasty letter yesterday:)
Mick
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Kowalski
GenIII
1/09/2008
15:48:55
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Did you over oil the filter ? I've had a K&N filter on my '00 since it's first filter change; and it's never been a problem.
Lead, follow, or get out of the way
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trialsmm
Dodge Dakota
JOIN HERE
1/10/2008
12:51:55
| RE: 2001 4.7 - Check Engine Code P0174 ??
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Message:
I don't think I over oiled the filter, I had cleaned and oiled it three times.
I mainly removed it because I got tired of the excess noise and other negitive comments on "oiled" filters.
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