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Discussion Starter · #1 ·
Just wondering if anybody has done any tuning for the 2.4's? Will a program like HP tuners work, where you can hack into the stock ECU to retune the car? or will you need to run a piggyback system like a SAFC?

Also does the car come with a narrow band O2 sensor? or a wideband similar to the turbo VW's?

Jer
 

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The o2 sensors are zirconia & alumina which make you think they are "narrow band".

The schematic shows three elements. So, maybe to make ULEV they are wideband.
 

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They are narrow, with either six or four wires. Front sensor is six wires, as there are two sensor elements, and a heater. Rear is four wires, two for the sensor, two for the heating element.

A remap would be quite complicated due to the CVVT and VIS both needing to be remapped. Adds a bit more work to the tuner, and with the 2.0T coming soon, they may think "why bother with the 'weak engines'?
 

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Revived from the dead:) new I'd find it.

Tech Times Volume 12, Issue 2
Yes, Forte does have wide band according to this KIA document.
Partial quote.

"
In 2004 Kia introduced the Wide Band “Linear”O2 Sensor on the Spectra . We now see this sensor on the 2009 Optima and Rondo with the 2.4 engine.
The new Forte will also have Wide Band sensors. These sensors are known as Wide Band because it allows the ECM to monitor the air fuel mixture over a wider range. There are new terms and new ways of testing these
sensors. Listed below are some of the terms and a brief description of the function and testing of the sensors. The tests were performed on a 2007
Spectra but all the Wide Band sensors are very similiar."
 

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wow thats fantastic for you guys.. that'll make tuning easier
 
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