I have a
problem with the engine revs rising during gear changes when the engine is cold, and again when it is at full temperature, but not when it is somewhere inbetween. Took it to the Seat dealers, who used the diagnostics kit to reset the faults, drove it around for a few days, and returned to dealers, who said there were no further faults, so probably ECU is faulty. Over £250 for the ecu plus fitting. Found several ECUs on line for reasonable amounts, but apparently you have to "Unlock" the ECU so it will recognise the key fob. Please could someone tell me if this is the case, and how do I go about it? Thanks. Iain, in Rugby. '04
Ibiza 1.2