[northbridge]

off topic a bit, but arent the earlier s2000's cable and the more recent ones dbw?

 

[xjohnkdoex]

they are.

 

[CalgaryTSX]

I'm not very familiar with the Hondata K-pro duel ECM conversion....

With this conversion, does the throttle body get converted to the RSX TB with a cable type butterfly valve?

If not, does the DBW with K-pro feel much better than the stock TSX DBW?


I totally agree that a direct cable throttle body is superior to a DBW.
As I mentioned, the newer Mustangs are DBW & work very well. But my old school 5.0L Mustang still feels superior if your compare the 2 cars side by side.

 

[kuma912]

I'm not very familiar with the Hondata K-pro duel ECM conversion....

With this conversion, does the throttle body get converted to the RSX TB with a cable type butterfly valve?

No

 

[jellynuts]

I totally agree that a direct cable throttle body is superior to a DBW.
As I mentioned, the newer Mustangs are DBW & work very well. But my old school 5.0L Mustang still feels superior if your compare the 2 cars side by side.

Can you bring your old Mustang tomorrow?

jk jk.

This conversation has been great! I'm going to ask the Hondata dealership in town tomorrow for more information about the K-Pro. I'll post what I find. It's costly, I doubt I'll be able to slip this one past my fiance.

TSX_WS: Comparing a new Mustang to an old makes a pretty valid argument. Comparing an S2000 to a Spectra? Please keep the contributions meaningful.

 

[TSX_WS]

My point is that cable throttle is not always sensitive....

 

[EuroRspec]

My point is that cable throttle is not always sensitive....

Your point is true but has no relevance here. The k24 is a very responsive engine. Just like any Honda motor, even the economy 1.5 liters in the old EF sedans had a good throttle response with 2 point injection.

Throttle response is usually works in correlation with fly wheel mass.

 

[CalgaryTSX]

So the TSX accelerator pedal has a cable to the DBW on the firewall. The cable must be moving a TPS sensor in the DBW module which sends signals to the stepper motor which controls the actual TB valve.

Tweaking the firmware in the ECM by Hondata would be best but this is not something you can do at home.


So next up are mechanical conversion options: (thinking out loud here)

1. Disconnecting the stepper motor on the TB would likely cause the DBW to throw codes.

2. It's not likely easy to convert the DBW TB to cable operated, so an RSX or Accord cable type TB would have to be installed.

3. I wonder if the ECM is monitoring the TB or rpms for feedback?

4. Connect a 2nd cable from the accelerator pedal to the new mechanical TB. Leave the original cable connected to the DBW module & the original TB unbolted from the intake but still connected to it.
So the accelerator pedal would move both the DBW sensor plus the mechanical TB.

Just tossing ideas out...

 

[MUGEN_CL9]

^interesting



Because of the SC I wish I had more room to play with in the TB area. I can bearly fit the 03-05 TB

 

[SoCaliTrojan]

Coming from several mechanical manual transmission cars, I can say that moving to the TSX's manual transmission had quite a bit of learning curve. Having to remind myself to make sure that I keep pressure on the throttle so that that it is never fully released during a gear shift sucks...I tend to forget and will sometimes give passengers a jerky ride. DBW implementations on other cars, such as BMWs, are great. Acura got their DBW implementation wrong in the TSX. Anyone who has driven a non-DBW manual transmission car knows that there is something wrong. How many times has there been a thread from a newbie stating his MT-driving experience yet needing instructions on how to drive a TSX smoothly? The answer: way too many...no one should have to re-learn how to drive manual transmission vehicles once they already know how to drive one.

Drivers with automatic transmissions won't see the DBW issue since the computer in those cars handle the gear shifts 100%. With manual transmission, half of the equation is the driver, so if the driver isn't driving like how the manual transmission wants to be driven, there will be issues. In non-DBW vehicles, the manual transmission is stupid and just goes along with the driver. In DBW vehicles, the manual transmission thinks for itself and teaches the driver to shift it the way it wants to be shifted (keeping the gas pedal at 1% rather than fully releasing it).

 

[kennungesser]

Just for fun, I went to a dealer and drove the 370Z. I only notice the "blip" on the downshifts. Fun car, but not worth the price,imo. And the shifting did not feel as positive as the TSX.

 

[CalgaryTSX]

What about the DBW on the 2nd Gen (2009 & newer) TSX?

Does anyone know if it feels better?

Is it the same system? ie. Cable from accelerator pedal to the DBW module on the firewall?


I've never even been close to a 2009 & newer TSX. I might have to go to a dealer to check out the DBW on it...

 

[aznboi0204]

I've actually attempted this with a K-swapped Intake manifold but failed. The set up would have worked if the throttle body worked with the cable. I pulled the cable from the DBW box and hooked it onto the the Skunk2 TB but you would have to transfer a sensor over to the new TB from the old one and from the DBW box to the new TB. My car started but the idle was extremely low and wouldn't respond when I pushed the gas. You need to transfer sensors over for starters. From there I'm also curious how to do it. I think if you transferred the sensors the conversion might work.

 

[ROCKSTAR TSX]

For those of you are interested in doing this.. here's what they do with TSX racecars.. Accord TB + throttle cable.. however you will need to run K-Pro (not RSX ones). SOme of you would know that in order to run K-Pro on TSXs, we need dual ECU set-up, the first ECU controls all electronic components on the vehicle ie VSA and cruise control and so on, and K-Pro controls everything else.

 

[conig]

For grand cherokee's and dakotas running 12's or lower people would just add a second cable to the gass pedal and relocate the dbw throttle body tps etc. Then use a manual throttle body with the new wire. Since as far as the computer knows everything about the dbw TB is functioning it doesn't throw a code. you can remove the blade and just mount it on the fire wall.

I've been told the TSX computer is too smart(which i think is popycock acura snobbery) I havnlt noticed this pcm being any smarter then our other cars , ford, lincoln,GMC, Dodge, porsche, VW. Just my opinion.

I totally support getting rid of the DBW system in the TSX. I too hate it.

Nearly all modern cars have DBW these days but the TSX is the worst I've experienced.
The 2005 & newer Mustang has DBW but you can barely tell when driving it.

...Joe

my 2004 explorers dbw is light years behind our tsx.

 

[manekDC2_]

i am very interested... what year accord TB and throttle cable part numbers would you need??? also how would you go about connecting the cable to the pedal and route it threw the firewall - or is it full custom???

obviously you need the full kpro, but will you still be able to use radio controls and cruise i know is out the window... i saw someone on here a while ago that did this, but i forget the link... cost and parts list would be awesome!

 

[willy18]

There's already a cable going through the firewall. The DBW unit is in the engine bay. It's on the firewall behind the passenger shock tower.

 

[dungsta]

yeah what year accord TB would u need to have?...would be nice to remove this feature

 

[jellynuts]

For those of you are interested in doing this.. here's what they do with TSX racecars.. Accord TB + throttle cable.. however you will need to run K-Pro (not RSX ones). SOme of you would know that in order to run K-Pro on TSXs, we need dual ECU set-up, the first ECU controls all electronic components on the vehicle ie VSA and cruise control and so on, and K-Pro controls everything else.

Thanks for the info Rockstar. Could you elaborate on what you mean by "Not RSX ones?" As in the second ECU cannot be from an RSX?

yeah what year accord TB would u need to have?...would be nice to remove this feature

03-07 Accord TB's should be a direct swap onto our intake manifolds. You might want to bore them out a bit however. I forget what the diameter is, but it might be smaller than even the 04-05 TSX TB.

 

[jellynuts]

Hmm, I tried to do some research on the TB diameters, but no dice.

However, if you have an 06+ TSX, use an 06+ Accord TB.

This is from light research from Accord forums so someone correct me if I'm wrong!