Kia Forte Forum banner
41 - 60 of 442 Posts
You did this while it was running? :eek: I'll say it again, this is only a dead play fix... there is other things that control RPM and i'm sure this is not one of them.

;) i'm more than comfortable with this kind of thing. I've had my fair share of modded cars in my lifetime.

If you move the unit enough, it will raise the RPM.
 
I took your advice Enviros and removed the pedal assembly from my car. At first I could not move the cover after loosening the screws again...but...I noticed in your picture that you removed the "fifth" top-most screw and sure enough, there's lots of play. I think that fifth screw is a "securing screw" to insure the cover doesn't move after initial cover adjustment. I have moved my cover 3/16" towards the front...now we'll see what the difference is.

Thanks for discovering, posting, and pictures!
 
Just got back from a test drive: MUCH better throttle response (I have 5 speed auto too).

Note to people that adjust your accelerator cover to full forward (Enviros' Step 7 Pic7: Shows the module moved with no dead spot)...your engine will rev higher at idle/initial start up...it will return to normal idle speed after letting it idle for a minute and a short drive.



I wonder, however, if the computer will relearn this and "tune" down the engine? Time will tell...
 
Man i tried doing this earlier and boy was i sweating bullets. i could not adjust a damn thing i unscrwed the bottom 2 and the far left one but after that i was like ok this thing isnt working, screws were in too damn tight just not enough space for me to loosen the screws. Now question do you loosen them or take them all off? Cause i took 3 off and then i stopped.
 
First post here. Nice forum. I'm interested in the Forte, especially the SX 6 speed. I'm shocked Kia released the car with this problem. It makes the car a lot more difficult to drive/less fun than it should be. Has anyone here ever thought of forwarding this easy mod to Kia? I think they really need to be this way from the factory.
 
First post here. Nice forum. I'm interested in the Forte, especially the SX 6 speed. I'm shocked Kia released the car with this problem. It makes the car a lot more difficult to drive/less fun than it should be. Has anyone here ever thought of forwarding this easy mod to Kia? I think they really need to be this way from the factory.
Like they would care... :p... off topic
 
Man i tried doing this earlier and boy was i sweating bullets. i could not adjust a damn thing i unscrwed the bottom 2 and the far left one but after that i was like ok this thing isnt working, screws were in too damn tight just not enough space for me to loosen the screws. Now question do you loosen them or take them all off? Cause i took 3 off and then i stopped.
It's easier if you unplug the unit and unbolt it from the car... there are 3 of them. I did the same thing as you upside down and sweatin bullets. ahah I was pissed to say the least. Once its out of the car you should have no problem.
 
Discussion starter · #52 ·
also picture 6 and 7 look identical to me. am i missing anything?
They are different Red... look closely where the screws are sitting in relation to the module... you'll see that the positioning (the slide part) is diff. Look at the top 2 screws... not the very top one... the next two. Yes you do need to loosen them all in order for it to move.
 
Discussion starter · #53 ·
It's easier if you unplug the unit and unbolt it from the car... there are 3 of them. I did the same thing as you upside down and sweatin bullets. ahah I was pissed to say the least. Once its out of the car you should have no problem.
Ya for the time it takes and the ease of taking it out its just easier to take the whole unit out.
 
It is FAR easier to adjust the cover if you take the accelerator pedal assy out of the car -- as Enviros said, there are two 10 MM nuts and one 10 MM bolt...and you have to disconnect the wire harness -- the clip is on the passenger side of the harness connector: squeeze the top of the connector and you will feel a click when the lock unsnaps...then just pull the harness connector off the top of the cover. There are 4 cross point screws that allow adjusting, the top fifth screw should be removed or backed out considerably -- or you won't be able to move the cover.

Now for the full information:
Brought my Koup to the dealer and had one of the service managers take a drive and then we hooked up a computer to see what was happening and then he brought up a new Koup to check against.
The correct voltage of APS 1 at idle should be @.7 volts. The engine does not respond until the APS 1 reads 1.0 volts. It takes about 5/16" (thickness of a pen) before it reads 1.0 volts. THIS is the "Dead Spot" -- it's real. I positioned my cover full to the front and had 1.3 Volts. This was causing the throttle to open and advancing the ignition considerably (original around 7-9 degrees - full forward is 20-30 degrees). This is too much for normal driving -- but great if you run your car at the dragstrip. The throttle response is outstanding too.

It is probably best to adjust the throttle cover so that APS 1 reads 1.0 volts. This will eliminate ALL pedal play and the dreaded Dead Spot. Try to start off with about 1/32" between the top adjuster screws and the edge of the cover's slots.
 
Discussion starter · #55 ·
I'm really happy that people are finding this useful. I was stoked when i found it and not finding anything on the forums about it. YAAAAA! i have a mod useful to the Kia community.... I usually go looking for help on stuff like this so for me to offer this up to others makes me very proud.

I just got so sick of driving a "new" car and stalling it like a damn n00b or racing the engine like Mario Andretti.

Can we name it Envi's mod ...:D?
 
Discussion starter · #56 · (Edited)
It is FAR easier to adjust the cover if you take the accelerator pedal assy out of the car -- as Enviros said, there are two 10 MM nuts and one 10 MM bolt...and you have to disconnect the wire harness -- the clip is on the passenger side of the harness connector: squeeze the top of the connector and you will feel a click when the lock unsnaps...then just pull the harness connector off the top of the cover. There are 4 cross point screws that allow adjusting, the top fifth screw should be removed or backed out considerably -- or you won't be able to move the cover.

Now for the full information:
Brought my Koup to the dealer and had one of the service managers take a drive and then we hooked up a computer to see what was happening and then he brought up a new Koup to check against.
The correct voltage of APS 1 at idle should be @.7 volts. The engine does not respond until the APS 1 reads 1.0 volts. It takes about 5/16" (thickness of a pen) before it reads 1.0 volts. THIS is the "Dead Spot" -- it's real. I positioned my cover full to the front and had 1.3 Volts. This was causing the throttle to open and advancing the ignition considerably (original around 7-9 degrees - full forward is 20-30 degrees). This is too much for normal driving -- but great if you run your car at the dragstrip. The throttle response is outstanding too.

It is probably best to adjust the throttle cover so that APS 1 reads 1.0 volts. This will eliminate ALL pedal play and the dreaded Dead Spot. Try to start off with about 1/32" between the top adjuster screws and the edge of the cover's slots.
Great info Forte!! so i guess i should turn mine back a bit then LOL cause its full on atm.
 
Great info Forte!! so i guess i should turn mine back a bit then LOL cause its full on atm.
IMO I would...but the throttle response is not as good :-(.

Until we can verify the long-term results of having the ignition always advanced at idle it would be a good idea.
 
I'm really happy that people are finding this useful. I was stoked when i found it and not finding anything on the forums about it. YAAAAA! i have a mod useful to the Kia community.... I usually go looking for help on stuff like this so for me to offer this up to others makes me very proud.

I just got so sick of driving a "new" car and stalling it like a damn n00b or racing the engine like Mario Andretti.

Can we name it Envi's mod ...:D?

It is truly useful! Thanks again!
 
Discussion starter · #59 · (Edited)
IMO I would...but the throttle response is not as good :-(.

Until we can verify the long-term results of having the ignition always advanced at idle it would be a good idea.
Understood but does it really advance the ignition...going to check my gas mileage against this cause it would tell me withing a tank of fuel. Besides i have a warranty and i would set it back or just deny ever moving it. Prove it is what I'd say. I just have a tough time believing this is controlling the timing when i think about it. What does APS stand for please? Better yet i can check the spark plugs against this as well... running it in a controlled instance. I live in the country so i can go on the same roads without interference. Or better yet take it to get dyno'd
 
also picture 6 and 7 look identical to me. am i missing anything?
Look again -- concentrate on the top two screw slots and the you will see the cover is positioned differently in relation to the screws in the photos.
 
41 - 60 of 442 Posts