207 will not start 1.4 hdi above radio it says ecu fault
The immobilizer on a Peugeot 207 can be reset by removing it and reinstalling. Another option is to install a new reader.
Disconnet the battery overnight in case the ecu has a back up. Reconnect it in the morning open the drivers door if you hear a beep its reset itself.
for ecu reset must disconnect cable battery for 45min and reconnect battery cable and start the engine
Where is the IAT sensor in a peugeot 207
disconnect the battery for 45mins, with the doors closed. After 45mins reconnect the battery and open the drivers door and you should hear a beep. your ecu will be reset. then take it out for a drive trying to keep to around 2000-2500rpm for the ecu to calibrate to the parameters.
The best way to learn how to do this is to look at the users manual. It will have all of the steps that you need.
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