Kia Forte Forum banner

2017 KIA Forte s driveability lag

315 Views 9 Replies 3 Participants Last post by  Jaybird Skedattle
I kave a 2017 Kia Forte S I bought it in January with 11,000 miles it ran very well up until about a month or so ago 13922 on it now. I start it drive out the driveway and drive to town about 12 miles stop at a few traffic lights and then park at a store parking lot go into a store for a half hour. Come out unlock car start up and drive out of the parking lot after a couple traffic light stops ,step on the accelerator and no go no rpm step down further no go let up and step again after a while it will go and drive ok This is scary in a high traffic area and seems to keep happening I put tectron the the fuel tank as KIa recomends and use good fuel even tried tri clean fuel from United Refinery nothing so far seems to help so thinking it may be something electrical I dont know
1 - 10 of 10 Posts
Go to a local auto parts store and get your battery tested. It may be weak. If it checks out okay, maybe your computer needs a reflash. That's something the dealer will have to do. Do you have any check engine light on? If so, what is the code?
  • Like
Reactions: 1
Go to a local auto parts store and get your battery tested. It may be weak. If it checks out okay, maybe your computer needs a reflash. That's something the dealer will have to do. Do you have any check engine light on? If so, what is the code?
Thanks I will do that it only seems to happen after driving a while then shut down for a while then restarted and driven a couple blocks There is no engine light on
No CEL? No codes stored?
  • Like
Reactions: 1
Had battery tested and its good codes checked with reader none so

just wonder why it runs good after driven and shut off for a while then restarted and go a couple stops No acceleration at all just push and nothing happens This is the only time it does it
Had battery tested and its good codes checked with reader none so

just wonder why it runs good after driven and shut off for a while then restarted and go a couple stops No acceleration at all just push and nothing happens This is the only time it does it
We can't really offer anything other than guesses without being able to diagnose or look at ECU data.

Obviously you have a problem and my guess is that what ever happens doesn't meet the parameters to set a code (possibly not long enough - time wise). Do you have a scanner that reads "pending codes"?

Guesses:
Defective throttle. Can you read throttle position data with a scan tool?
Defective MAP sensor. Can you read the values of the MAP sensor with a scan tool?
  • Like
Reactions: 2
Thanks I just ordered the diagnostic tool in this video My car did it again today no gas pedal response after driving a few miles and stopping for about 5 minutes I started it up pulled to the highway waited for traffic found a open spot and no gas pedal Never had a car like this before

You say you have a 2017 Forte but are showing us someone running codes on an Infinity. What's the point? We need to see what the scanner shows if it's connected to YOUR car. I have no idea if that scanner is a good one or not.
Simple I need it like the video shows for pending codes not stored codes like stated above
  • Like
Reactions: 1
Waiting for obd 2 tester so
I found out yesterday when no acceleration at a stop light when taking off no go I pump the accelerator and after 4 of 5 quick pumps it takes off and gos and I can drive home at 65 mph no problems
1 - 10 of 10 Posts
Top