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PCX's ECU

Posted: Thu Apr 25, 2013 3:18 pm
by Cascanciu
Hi there!. Has anyone dismantled or gained access to the guts of the PCX's ECU?. For a start I still don't know where it's located (some googleing will educate me on that, I know), but then, what I'd like to know is what's inside, and for a reason.

I have a good friend who's some kind of chiptuning wizard. He does that for a living (among other things) and in fact, he has remapped my car with outstanding results. Well, my car and heaps of others, including racing cars. I trust him 100%.

Thing is, depending on what's inside the PCX's ECU, there's a chance that the ECU's management software is "readable". Then we'd need to have a flashable memory (e-eprom) in order to edit that software and flash it back to the ECU. Why?. Well, you could install aftermarket parts and get the most of them, or just remove the electronic restriction that prevents us from going any further than 100 kph, even when you can feel that the engine still could push a bit more.

Inputs appreciated

Re: PCX's ECU

Posted: Fri Apr 26, 2013 6:22 am
by maddiedog
PCXdemon has replaced his ECU, he'll probably be helpful. There's a lot of aftermarket ones available, so the stock one may not be flashable.

Re: PCX's ECU

Posted: Fri Apr 26, 2013 10:54 pm
by Pcxdemon
maddiedog wrote:PCXdemon has replaced his ECU, he'll probably be helpful. There's a lot of aftermarket ones available, so the stock one may not be flashable.
No one has touched original computer but rather have made fully editable ecu by pass modules that you can tune at home on a laptop. I had a Kitaco ecu that was very easy to go in to and edit around but you really need a dyno or something for a road tuning to get it right and also Chameleon has E-Braker that is the same thing...
In my opinion there is no point doing anything with either of those two unless you go big bore kit to compensate for the stock ecu short fall otherwise stock ecu can cope with a lot of changes like, aftermarket exhaust,pod filter even going on to a 30mm throttle body upgrade,you just need to disconnect your battery for 5 min after you install something so comp resets itself and re-learns new parameters.

Re: PCX's ECU

Posted: Sat Apr 27, 2013 11:30 am
by you you
Pcxdemon wrote:
maddiedog wrote:PCXdemon has replaced his ECU, he'll probably be helpful. There's a lot of aftermarket ones available, so the stock one may not be flashable.
No one has touched original computer but rather have made fully editable ecu by pass modules that you can tune at home on a laptop. I had a Kitaco ecu that was very easy to go in to and edit around but you really need a dyno or something for a road tuning to get it right and also Chameleon has E-Braker that is the same thing...
In my opinion there is no point doing anything with either of those two unless you go big bore kit to compensate for the stock ecu short fall otherwise stock ecu can cope with a lot of changes like, aftermarket exhaust,pod filter even going on to a 30mm throttle body upgrade,you just need to disconnect your battery for 5 min after you install something so comp resets itself and re-learns new parameters.
Or you can just potter along at the bikes design limits.

Re: PCX's ECU

Posted: Sat Apr 27, 2013 3:08 pm
by Cascanciu
Well, my thought was that with the proper knowledge (case of a person like my mate) it would be possible to locate any map that has to do with the speed limiter, edit it and see what happens. Some say the restriction is electronic and others think it has to do with the variator, it would be a good way of finding out.

Re: PCX's ECU

Posted: Sat Apr 27, 2013 3:37 pm
by you you
Cascanciu wrote:Well, my thought was that with the proper knowledge (case of a person like my mate) it would be possible to locate any map that has to do with the speed limiter, edit it and see what happens. Some say the restriction is electronic and others think it has to do with the variator, it would be a good way of finding out.

It's a laughable slow scooter. It'll never really blow the doors of anything

Even with a mate with a laptop

Re: PCX's ECU

Posted: Sat Apr 27, 2013 3:43 pm
by Cascanciu
you you wrote:
Cascanciu wrote:Well, my thought was that with the proper knowledge (case of a person like my mate) it would be possible to locate any map that has to do with the speed limiter, edit it and see what happens. Some say the restriction is electronic and others think it has to do with the variator, it would be a good way of finding out.

It's a laughable slow scooter. It'll never really blow the doors of anything

Even with a mate with a laptop
That's for sure ;) , but there is the fun factor in it, isn't it?. He wouldn't charge me for that and we boys like our toys, don't we?. I

Re: PCX's ECU

Posted: Sun Apr 28, 2013 1:23 am
by you you
Cascanciu wrote:
you you wrote:
Cascanciu wrote:Well, my thought was that with the proper knowledge (case of a person like my mate) it would be possible to locate any map that has to do with the speed limiter, edit it and see what happens. Some say the restriction is electronic and others think it has to do with the variator, it would be a good way of finding out.

It's a laughable slow scooter. It'll never really blow the doors of anything

Even with a mate with a laptop
That's for sure ;) , but there is the fun factor in it, isn't it?. He wouldn't charge me for that and we boys like our toys, don't we?. I

Fair enough. They joys of fiddling

Re: PCX's ECU

Posted: Thu May 09, 2013 10:22 am
by cessna151
The PCX 150 has such a strong power curve from 0-35mph, it might be interesting if you could mellow the low end down just a bit to squeeze a few more MPG out it.

Re: PCX's ECU

Posted: Wed Feb 12, 2014 10:55 pm
by dem0nk1d
My pcx 150 stops at 65mph. Either hitting a rev-limited or speed governor. Any way to bypass this without having to upgrade to a ECU bypass add-on?

Re: PCX's ECU

Posted: Thu Feb 13, 2014 1:38 am
by Mgalutia88
Put simply, replace your variator.

Re: PCX's ECU

Posted: Thu Feb 13, 2014 10:48 am
by dem0nk1d
Mgalutia88 wrote:Put simply, replace your variator.
That's usually the first mod i do. Then exhaust and intake.

Re: PCX's ECU

Posted: Thu Feb 13, 2014 12:10 pm
by hatari
you you wrote:
Pcxdemon wrote:
maddiedog wrote:PCXdemon has replaced his ECU, he'll probably be helpful. There's a lot of aftermarket ones available, so the stock one may not be flashable.
No one has touched original computer but rather have made fully editable ecu by pass modules that you can tune at home on a laptop. I had a Kitaco ecu that was very easy to go in to and edit around but you really need a dyno or something for a road tuning to get it right and also Chameleon has E-Braker that is the same thing...
In my opinion there is no point doing anything with either of those two unless you go big bore kit to compensate for the stock ecu short fall otherwise stock ecu can cope with a lot of changes like, aftermarket exhaust,pod filter even going on to a 30mm throttle body upgrade,you just need to disconnect your battery for 5 min after you install something so comp resets itself and re-learns new parameters.
Or you can just potter along at the bikes design limits.
i'm all for that.....

Re: PCX's ECU

Posted: Thu Feb 13, 2014 1:00 pm
by dem0nk1d
there is a company that makes a total standalone ECU for the Zuma 125. It's possible they may have something for the PCX. I'd have to check.


http://www.aracer-speedtek.com/webnews/ ... ducte.html

Re: PCX's ECU

Posted: Thu Feb 13, 2014 7:47 pm
by dem0nk1d
Also another note, i know this module

http://www.steadygarage.com/store/two-w ... -yamaha-c3

has been used on the new EFI Honda met, by a fellow at Steadygarage. So this maybe a cheap solution to get a little bit more power out the pcx.