Engine tuning

[RicStyx]

I recently enquired with a reputable engine management tuning company as to see if there is anything they can do. They have a software which is dyno tested before and afterwards for proof on the yaris and is very moderate in terms of power gains.

I have heard our yaris ecu's don't like to be tuned and can cause issues. Has anyone else had a problem with any tuning of there systems?

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[DarkShadowFox]

Originally Posted by RicStyx

I recently enquired with a reputable engine management tuning company as to see if there is anything they can do. They have a software which is dyno tested before and afterwards for proof on the yaris and is very moderate in terms of power gains.

I have heard our yaris ecu's don't like to be tuned and can cause issues. Has anyone else had a problem with any tuning of there systems?

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uh whats the name of the tuning company and where are they based out of.

[ern-diz]

The general consensus seems to be that using a piggyback or replacing the ECU is the way to go.

[RicStyx]

Originally Posted by DarkShadowFox

uh whats the name of the tuning company and where are they based out of.

There based here in South Africa. Called ATM tuning

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[DarkShadowFox]

Originally Posted by ern-diz

The general consensus seems to be that using a piggyback or replacing the ECU is the way to go.

this /thread

[tmontague]

Even then piggybacks have been reported to essentially lose their tune as the stock ecu sometimes "relearns" itself. This has been well documented on corolla forums. The first gen Yaris' (echo's) don't have an afr sensor and piggybacks work fine on those which makes going turbo much easier from what I have read and discussed with people

If your country allows standalone ecu's and it keeps it road legal then go with a standalone ecu that your local and trusted tuner if familiar with. This will make it much easier to tune the engine the way you want

[DarkShadowFox]

Originally Posted by tmontague

Even then piggybacks have been reported to essentially lose their tune as the stock ecu sometimes "relearns" itself. This has been well documented on corolla forums. The first gen Yaris' (echo's) don't have an afr sensor and piggybacks work fine on those which makes going turbo much easier from what I have read and discussed with people

If your country allows standalone ecu's and it keeps it road legal then go with a standalone ecu that your local and trusted tuner if familiar with. This will make it much easier to tune the engine the way you want

put a 3rd gen yaris body over a 1994 corolla chassis call it custom body work done.