MattR
Well-Known Member
The sensors should have been switched off in the ecu during the flash. If they weren’t the ecu would have been looking for them and registered a fault. So I’m not surprised it ran shit. The sensors are supposed to make up for the OEM map. If flashed properly they are not needed and if left in and switched on they will fight against the new mapsI had mine flashed years ago by AVC8130. Did all the good. I disconnected my O2 sensors for the heck of it and it ran like shit instantly. I didn't make it out of the yard before I plug them back in. I have a PCV with the map for my headers installed. My advice is save your money on that if your flashing. TBH I can disconnect the PCV and not really tell any difference.
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