Hi does the Xede do closed loop boost control on the Evo? I have an Evo 7.

If yes, how does it sense manifold pressure? Does the Xede have a built in MAP sensor, or does it tap into the factory sensor?

Thanks
Patrick

 

As with the factory EVO ecu, the XEDE does not support closed loop fuel control. It is completely open loop in the case of the EVO, which doesn't have a usuable MAP sensor (it's only a 1bar unit, at least in US EVO8 applications.) In WRX apps, the EVO can be used to complement the factory closed loop fuel control by adding offsets to both the boost targets as well as the wastegate duty cycle. This is because the WRX already has a usable MAP sensor and closed loop logic.

Regards,
Shiv

 

Hi Shiv,

You mentioned closed loop fuel, I was actually asking about closed loop boost control, ie where a MAP sensor is used to measure the actual manifold pressure, and feed it back to the Xede which can make adjustments to riase or lower boost to the target value.

I think even though you said fuel, you actually meant boost?

Isn't the stock peak boost about 19psi, which is more than 1 bar, in other words, wouldn't the evo MAP sensor be higher than 1 bar?

The Xede specs say it can do closed loop, so I thought if the evo had a suitable map sensor, it could be wired up to do closed loop boost.

Thanks
Patrick

 

Even though I said "fuel", I meant "boost". Hey, I was tired last night

Shiv