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View Full Version : Megane RS 265 / EMS3110 / 3130



cokeaddict
8th September, 2022, 05:34 PM
I recently bought a Megane RS265, it has previously been mapped with the cat in.

I have now decatted it, so would like to disable the dtc for the rear 02 sensor (light isn't on yet, but apparently it is only a matter of time).

However when I tried to read the ecu with mpps, it gave a security access / invalid key error.

When I ID the ecu, it shows the vin correctly, the hw number correctly but the Data3 line shows 99580FA STCHIP_

From what i've read Fastchip lock ecu's and even if the ecu is returned to stock afterwards they remain locked.

Does anyone know what I need to unlock the ecu and put a stock map (preferably a 275 map) onto it ?

Can I put this ecu into bootmode to read the current map and then flash it with a stock map using my old FGtech v54 ?

cokeaddict
10th November, 2022, 07:20 PM
Can anyone help ?

alonedark
10th November, 2022, 07:37 PM
post a video with your car