Unichip/xede And Wds Updates

[XR6_ED]

Today Vixen had her 15k service..

The dealer asked if I wanted the WDS firmware update...At least they asked first mainly because they know I have Phase II

The update is to resolve issues such as

Stalling

Fuel economy

Boost problems(overboost)

and a few other things(I forget now)

Before the upgrade I confirmed with Morpowa that the update would upset the Unichip.

Phase II BEFORE WDS update 291rwkw

Phase II AFTER WDS update 265.3 rwkw (it felt slower)

Phase II AFTER WDS update and retune 291.8rwkw

The WDS Update had advanced the timing by a couple of degrees and taken fuel out thru out the rev range..

The Unichip map virtually had to be re-mapped from scratch

Very interesting Day

[XRTank]

Interesting... so what about the problems the WDS update was supposed to fix? Keep us posted on your outcome

[C.S.I]

Interesting... so what about the problems the WDS update was supposed to fix? Keep us posted on your outcome 

<{POST_SNAPBACK}>

What exactly is the WDS Update.

Is this referring to the latest Ford reflash PRGC309, or something else.

[JB]

That descibes the exact problems I am having at the moment. The upgrade has sent my PCM and Unichip haywire, we are just trying to work out now whether it is the PCM or the chip that has been affected, as the car is basically undrivable at low speeds, fuel economy has gone through the roof, constantly stalls and is running like

I am waitng to hear back from my tuner as we origiany though the problem was the driveline and Diff, turns out now it is more likely the PCM, as it's even got ford scratching their heads.

[C.S.I]

My STOCK T has had no issues with the new FORD flash that I metioned ealier.

But then, it had no problems before it either

[XR6_ED]

That descibes the exact problems I am having at the moment. The upgrade has sent my PCM and Unichip haywire, we are just trying to work out now whether it is the PCM or the chip that has been affected, as the car is basically undrivable at low speeds, fuel economy has gone through the roof, constantly stalls and is running like 

I am waitng to hear back from my tuner as we origiany though the problem was the driveline and Diff, turns out now it is more likely the PCM, as it's even got ford scratching their heads.

The first question Simon asked me was "how does the tune feel after the update"

The first thing I noticed was the lack of power thru out the rev range ,,but the idle was smoother

On the dyno it confirmed the reduced power...The update had altered the fuel and spark of the original PCM tune

This inturn had thrown the unichip out , as the unichip was bending the newly altered PCM maps which resulted in an out off tune engine

The Ford dealer I go to also have had instances where updates have caused chipped cars to not refire at all...

After 1 1/2 on the dyno and a test drive listening for detonation ,Vixen's power is the same as it was before the update...

The only thing that has improved because of the update was the idle quality..Much more consistent now..We put the previous idle fluctuations down to the aluminium flywheel (4.6 kg lighter than stock flywheel) during the clutch upgrade..

JB have you had your air/fuel ratio checked since the update?

The Air/fuel ratio I noticed was reading lean when we done the dyno run