[cruisn76]

Ok, I've been driving manual for years and years and one thing that is really bothering me is the accelerator pedal.

At a stand still, my style of driving on first gear is gas and clutch but on the VT I need to pump the gas one time and then release the clutch and then gas some more for transition. I hate that! I need to be able to do first gear in one shot without double pumping the accelerator. I usually do first gear at 1000-1200 RPM.

I tried many many times to hold the accelerator at at specific RPM but every time I hold that gas pedal it shoots to 2000RPM. The accelerator is not sensitive enough, it is almost preset set to shoot to 2000RPM, does anyone have this issue? Is this because I only put 1100km on the vehicle?

I already pulled the magnet out of the air box with no change.

Please help!

 

[swordfish]

There is a known 'feature' that disables free revving of the motor when the the clutch is engaged (foot not on clutch). The fix is to bypass the clutch engagement sensor... There is a post about it somewhere.
I'm not sure if its the same issue you are feeling, but I have not experienced what you are describing.
The first thing I would do is take it to the dealership. Explain to them your issue. See if they have a VT MT on the lot a that you can test drive and see if the problem is universal or just yours.

 

[Cinderblock7881]

I'm going to look into adjusting the TPS in the drive by wire system behind the pedal, like the forte guys have to, because my pedal has about a 1/2 of dead play, and I think that might be what you are talking about, because I have to the same thing. I also notice my VT wont smoothly take off from a stop unless I have it around 2500-3k. I'm not sure if this is normal, or if someone fried the clutch during a random test drive. but it pulls fine in every other gear, and doesnt slip in 6th, soooo. lol

 

[cruisn76]

I'm going to look into adjusting the TPS in the drive by wire system behind the pedal, like the forte guys have to, because my pedal has about a 1/2 of dead play, and I think that might be what you are talking about, because I have to the same thing. I also notice my VT wont smoothly take off from a stop unless I have it around 2500-3k. I'm not sure if this is normal, or if someone fried the clutch during a random test drive. but it pulls fine in every other gear, and doesnt slip in 6th, soooo. lol

BINGO! There is dead play. Only when the accelerator is pushed to a certain point it will then shoot to 2000RPM. Annoying as "F". I wouldn't know what to do with the TPS so I hope u keep this thread updated with the progress.

@swordfish. That is the next thing I am gonna try. Take off the secondary switch for the clutch. But with the info already posted, that switch is to stop the engine from slightly revving when the clutch is engaged. But worth a try nonetheless

 

[Cinderblock7881]

Yeah I will try when I get the chance, and let ya'll know. It is probably the same system, and the forte guys said it is a night and day difference.

 

[|]are |]evil]

found this

 

[Stone Axe]

Yeah, the accelerator has kind of a mind of its own sometimes. That's probably because it is "fly by wire" and not mechanical.

I get what you are saying but it has not been a problem for me. My style is to open up the accelerator to rev the engine and then ease the clutch as the revs come up and then hold the accelerator where I need for the amount of power I want. Often that leads to flooring it after the clutch engages!

It definitely took me awhile to learn the VT MT's cadence. Now it is second nature and I'm spinning the hard stock tires without any drama and fuss.

 

[cruisn76]

^ in stop and go traffic it's a really b*tch. I need to feather the throttle and use minimal clutch. In my older cars, I can make the clutch last 250,000km and up before a clutch change. This is all due to minimal burn on the clutch especially 1st gear. Unfortunately, right now I need to double pump which I can manage without jerking the car but it's the wear and tear that I am not happy about. I am all about making it last.

Not only did I manage a clutch over 250,000km, I also didn't do a brake change in 6.5 years because of downshifting. I am a cheap bastard at times. Lol

 

[Stone Axe]

Living in Atlanta traffic is a real pain and it made the decision to get a MT a difficult one.

Luckily on the highway during my typical evening commute it is more slow and go then stop and go so I can leave it in 2nd. The VT will launch in 2nd - especially in slow traffic and it can come nearly to a stop in 2nd without stalling. Launching in 2nd can be weird if you don't rev the engine enough though and I can get stuck with the revs too low for it to accelerate past idle. I've learned that just putting in the clutch and letting the engine rev and then letting it out fixes that problem - but it ain't pretty.

I hear you about making the clutch last too. I've never replaced a clutch in any of my previous MT cars even though they were used and I put a lot of miles on them. Everyone has an opinion on how to drive a clutch and I've often been criticized for slipping or feathering my clutch too much. I agree that minimizing jerking and abrupt transitions is best for making the clutch last.

 

[TheBlackBass]

I know exactly what you are talking about, that rev spike is very annoying. It's impossible to hold a steady RPM during take off so I find myself pulsing the gas pedal to get it somewhat steady aroudn 1.2-1.5k then just let the clutch out slowly. I don't believe it tries to spike like that when the clutch is fully engaged (pedal out) and in gear. My guess being that this is a drive by wire system is that the spike is programmed in. Perhaps it's part of the stall prevention mechanics. I've noticed if I use no throttle and let the clutch out too fast it heads to stall (duh i know) but when I push the pedal in to prevent a stall the rpms have jumped as high as 1.5-2k without ever touching the gas pedal. That's strange to me but then again this is my first MT DD car and I have 7500 miles on it so far. If you figure out a fix then please share with all.

 

[AdelaideSRT]

It's odd, I had a good play with the throttle on the way out of the city tonight, and I can happily sit on 1000-1200 rpm by lightly holding the accelerator - I don't have any lag on the pedal, and it's smooth enough to feather - wonder if this is another difference between the Aus and US versions? Left vs right hand drive? Expensive leather shoes maybe?

 

[Cinderblock7881]

It may just be that the Aus version, like the suspension, has a little more love, and fine tuning. I will let everyone know about the TPS setting this weekend, but if it is that, you could go to the dealership, and tell there tech to put it .95 volts, or ohms (i dont remember lol) to get rid of the dead play.



http://www.forteforums.com/forums/d...63-tps-adjustment-procedure-throttle-mod.html

btw, this is what I am talking about. they use the same base platform, so I figure it is safe to assume they use the same pieces, like the throttle, and DBW unit.

 

[MTD]

Mine drives fine too. I havent owned a car in over 6 years that didnt have DBW. It can feel a bit odd to new owners.

 

[TurboJet87]

Mines good. I dont have any of these issues. This is Not my first M/T either but the throttle is def less sensitive then my scion which is ok wit me. Lol

 

[Cinderblock7881]

so I found the system behind the pedal, but I have to pull it out, as it faces the wrong way, and it was raining. so maybe this coming weekend. mine has about 1/2 of dead play in it, and it just bothers me lol.

 

[VeloT]

so I found the system behind the pedal, but I have to pull it out, as it faces the wrong way, and it was raining. so maybe this coming weekend. mine has about 1/2 of dead play in it, and it just bothers me lol.

Thanks for all the links, I was going to try this also...I looked at this weekend but didn't have the time to pull it apart...please post up when you do it CB. Our Sonata's pedal is very sensitive, but I like it better than how "mushy" my pedal feels at first.

 

[Cinderblock7881]

no probs, I will deff keep this updated

 

[cruisn76]

Patiently waiting... If u find adjustments need, I will get my dealer to do it.

 

[MyDianaZ06]

It may just be that the Aus version, like the suspension, has a little more love, and fine tuning. I will let everyone know about the TPS setting this weekend, but if it is that, you could go to the dealership, and tell there tech to put it .95 volts, or ohms (i dont remember lol) to get rid of the dead play.



TPS adjustment procedure (throttle mod.) - Kia Forte Forum : Sedan / Koup / Forte5 Forums

btw, this is what I am talking about. they use the same base platform, so I figure it is safe to assume they use the same pieces, like the throttle, and DBW unit.

no probs, I will deff keep this updated

So are you going to do what that kia forum diy thread did?

if so take pics of before and after readings on your volt meter

 

[Cinderblock7881]

Yeah, that is what I am going to try to do. I maayyyy try it tonight, but atm it is still raining, and I may not have anything new till this weekend.