Target Idle Speed change. Aveo5 2010 / 1.2 Petrol

[vasiltorbov]

Hi Guys,

First of all, it's a really huge pleasure for me! I tried to find something with the "Search" but nothing useful and that's why i am posting this new thread.

First little geographic info: I am Vasil, Nice to meet you. I am from Europe/Bulgaria.

Now with the real problem that I have.

I have AVEO5 (or T250, I am not sure which is right). It's a 2010 year model hatchback. I bought it a brand new. Now it's on 46000KM. Since the beginning it's was with low idle speed (around 650RPM ). I went to the official GM workshops here in the capitol Sofia, but they told me that this Target Idle Speed value is in the ECM/ECU and it's impossible to change it. I think for the engine is hard to work with such low values...

Now my question is, does anyone know a software and a cable type, or anything that can access the root of the computer and can change these simple values? I will accept everything that you are sure that it will work.

Please help me with everything that you can. I think these 650 RPM are not enough for the car to work fine and smooth.

Best Regards
Vasil Torbov

[Daox]

Hello and welcome to the site Vasil.

Is the low idle speed really that big of a problem? You've driven 46000km with it like it is. 650 rpm for a manual transmission vehicle seems pretty normal to me.

Also, there is no real easy way to increase idle speed (without doing a hack job). It is controlled by the ECU. Reprogramming is possible but expensive.

[vasiltorbov]

Hi Daox,

It's not a really big deal, but I have installed LPG system on it, and there is a little problem with keeping the idle speed stable on LPG. There is a distortion of 50 to 100 RPM up and down, and sometimes this makes the engine to shake a little. That is the main reason that i want to increase the idle speed a little from 650 to 750 or 800. So, there is a way but i can't do it myself... That's bad. If it's so expensive then it doesn't worth to spend money on it.