*** Restricting New Posts to SD Premium Members ONLY *** (09 May 2025)

Just made a new account? Can't post? Click above.

Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

2013 Kia Forte 2.0L with P2191 Lean at higher load

  • LadoAuto85
  • LadoAuto85's Avatar Topic Author
  • Offline
  • New Member
  • New Member
More
4 years 4 months ago #48471 by LadoAuto85
2013 Kia Forte 2.0L with P2191 Lean at higher load was created by LadoAuto85
So, I am working on a 2013 kia forte with a 2.0L engine. It has a P2191 code ( Lean at higher load) So far I have checked for vacuum leaks, evap leaks, PCV system, fuel injectors, fuel pump, air filter, fuel leaks, F/A ratio sensors, O2 sensors, MAP. This car is not equipped with mass air flow sensor. When I first started working on this car, it had a leak from the valve cover gasket and the intake runner switch was missing and had a code for that. I went ahead and replaced the valve cover gasket and installed the intake runner switch. The code for the intake runner switch went away and it's no longer leaking. I noticed when I removed the valve cover, the cylinder head was very dirty with oil deposits. It was thick and just nasty. I wonder if that has anything to do with it.
The long term fuel trim is at 29%. When it's driven and hard on gas, it drops to 21% and sit there. When at idle and revved the long term fuel trim gets better but climbs back up as soon as you let go the gas pedal. I have a smoke machine so, I was able to smoke it for leaks. The car idles smooth and has plenty of power when driving, even when under high load.
Now, when I reset the fuel trim values, The LTFT drops to zero but the STFT would be very high at around 36% After a short test drive, the STFT drops down close to zero and the long term fuel trim is back again at 29%.
The intake manifold runner sensor that I installed on the vehicle was not tested at all. I just installed it cleared the code and the code never came back.
What do you guys think? FYI, this is my first time writing here, Thanks ScannerDanner for the invite.

Please Log in or Create an account to join the conversation.

More
4 years 4 months ago #48476 by Andy.MacFadyen
Replied by Andy.MacFadyen on topic 2013 Kia Forte 2.0L with P2191 Lean at higher load
The symptoms would fit restricted fuel delivery, restriction on the fuel flow rate
" We're trying to plug a hole in the universe, what are you doing ?. "
(Walter Bishop Fringe TV show)

Please Log in or Create an account to join the conversation.

  • LadoAuto85
  • LadoAuto85's Avatar Topic Author
  • Offline
  • New Member
  • New Member
More
4 years 4 months ago #48487 by LadoAuto85
Replied by LadoAuto85 on topic 2013 Kia Forte 2.0L with P2191 Lean at higher load
Great! I will definitely be focusing of that. I have not checked the fuel line yet, that is from the pump to where the fuel rail starts but, as far as the fuel pump, fuel filter, injectors and the regulator they are all functioning properly.
Thanks Andy!

Please Log in or Create an account to join the conversation.

  • Tyler
  • Tyler's Avatar
  • Offline
  • Moderator
  • Moderator
  • Full time HACK since 2012
More
4 years 4 months ago #48488 by Tyler
Replied by Tyler on topic 2013 Kia Forte 2.0L with P2191 Lean at higher load
In addition to fuel pressure/volume, take a fuel sample to test for excessive ethanol content. Was the tank filled recently?

Please Log in or Create an account to join the conversation.

More
6 months 2 weeks ago #84369 by Monkeywrench
Replied by Monkeywrench on topic 2013 Kia Forte 2.0L with P2191 Lean at higher load
Did you determine a solution to this problem?

Please Log in or Create an account to join the conversation.

Time to create page: 0.324 seconds