Error code P0171 - Kia Forum
User Tag List

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 05-16-2007, 10:32 PM
Newbie
 
Join Date: May 2007
Posts: 2
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

(Thread Starter)
Default Error code P0171

I want to share my experience.
My car is
2002 Kia Optima 2.4/LX with ~55,000 miles.
She had the follwing problems.
-Engine check light on.
-Unstable idle.
-jerking and shaking.
-hesitation.
-horrible noisy sound during acceleration (sound like "da da da da")

Went to the Autozone, I got the error code P0171.
The suggested problems are
-oxygen sensor
-vacuum leak
-Fuel injection.

I opened the engine cover and found that the PCV hose had a big hole.
I pulled out the PCV valve and hose and cleaned the PCV valve with 3M throttle body cleaner spray. I exchaned the hose with a new one.

Now everything is O.K.!

She runs smoothly.
someb is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 05-17-2007, 05:34 AM
Full Member
 
bynesa's Avatar
 
Join Date: Dec 2006
Location: Belgrade,Serbia
Posts: 85
Drives: 2002 Kia Magentis 2,0 LPG
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Default

Glad you fixed your problem!!!
I wish that more people posted solutions to their problems, so the rest of us could have an idea how to fix it and how much fixing it costs.

Anyway thanx for the post....cheers
bynesa is offline  
#3 (permalink) Old 06-07-2007, 12:18 PM
Newbie
 
Join Date: Jun 2007
Posts: 16
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Default

Excellent.
I'm having a very similar problem right now w/ my '01 2.4L Optima 63k miles. There's been a slight "miss" after I bought it, just before it shifting from 1st to 2nd, or 2nd to 3rd (auto tranny)... but 2 days ago it simply began sputtering like it was running on only 3 Cylinders.

Scanner code of P0300 is what a repair shop got for mine (supposedly interprets as "random misfire"), after my check light came on as well.

I have changed the Fuel Filter, PCV valve, & Spark plugs (even used the platinum NGK's at $10/plug). Still the same problem... no better than before.

I've been told that it may be the Wires, Coil, CAM sensor, or ECM.

I checked the PCV lines & throttle body hoses... no holes/leaks I can see or feel.

Thank you very much!!! I'll let u know my results.

Greg 512-261-6322
tii_greg is offline  
#4 (permalink) Old 06-08-2007, 12:59 AM
Member
 
bloody13's Avatar
 
Join Date: Jun 2007
Posts: 36
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Default

Quote:
Originally Posted by bynesa
Glad you fixed your problem!!!
I wish that more people posted solutions to their problems, so the rest of us could have an idea how to fix it and how much fixing it costs.

Anyway thanx for the post....cheers

Agree! Us, newbies will learn a lot out of it!

bored...:mellow:
...and looking for fun!:p
bloody13 is offline  
#5 (permalink) Old 06-08-2007, 12:54 PM
Newbie
 
Join Date: May 2007
Posts: 2
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

(Thread Starter)
Default

Hi, Greg
Here are some items related to P0300.
1. Vacuum leak in air intake system
-check hose leak (Especially PCV, ISC hose, throttle body, intake manifold, and brake booster)
2. CKPS(crank shift position sensor) circuit malfunction
3. Ignition circuit malfunction
4. Faulty ignition coil or plug wire
-check resistance of the primary and secondary IG coils(primary coil: 0.78±10% Ω at20°C,secondary coil: 20±15 kΩ at20°C)
-check the plug wire
5. Spark plug malfunction (replaced)
6. Low compression due to blown head gasket, leaking valve or piston ring
7. Low/high fuel pressure due to to faulty pressure regulator, restricted fuel lines, plugged fuel filter or faulty fuel pump
8. Fuel injector circuit malfuction
9. Faulty fuel injector

I suggest you check the IG wires and IG coils.
Hoping to fix your car...
someb is offline  
#6 (permalink) Old 06-10-2007, 12:45 PM
Expert
 
Raven1210's Avatar
 
Join Date: Feb 2006
Location: Toronto Ontario
Posts: 968
Drives: 1999 Acura Integra
Gallery: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

Default

Quote:
Originally Posted by tii_greg
Excellent.
I'm having a very similar problem right now w/ my '01 2.4L Optima 63k miles. There's been a slight "miss" after I bought it, just before it shifting from 1st to 2nd, or 2nd to 3rd (auto tranny)... but 2 days ago it simply began sputtering like it was running on only 3 Cylinders.

Scanner code of P0300 is what a repair shop got for mine (supposedly interprets as "random misfire"), after my check light came on as well.

I have changed the Fuel Filter, PCV valve, & Spark plugs (even used the platinum NGK's at $10/plug). Still the same problem... no better than before.

I've been told that it may be the Wires, Coil, CAM sensor, or ECM.

I checked the PCV lines & throttle body hoses... no holes/leaks I can see or feel.

Thank you very much!!! I'll let u know my results.

Greg 512-261-6322
I had that problem with my rio when i bought it. it had dirty gas so i just put in fuel injecter cleaner and it fixed the problem
Raven1210 is offline  
Reply

  Kia Forum > KIA Models > Kia Magentis & Optima Forum


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On