Defender ECU part#s difference

[harro]

Does anybody know what the difference is between.
NNN000120 and
NNN500020 ecu's ?

I have bought a spare of ebay for my 02 Defender.
The seller has stated that it is off a Defender.

All I have been able to ascertain is that NNN000120 was superseded by
NNN500020 but no details to any 'difference'.

I have a Nanocom and plan on writing the settings from my ECU to the spare and also the security learn function.
Is that all there is to it?

Cheers,
Paul.

[OffTrack]

They have some differences at a circuit level - the type of driver transistors were changed to reduce generated noise is one example - which require different software but both are suitable for a manual Td5 with the correct map.

What you will need to do is use the Nanocom Map Wizard ( download from :: Download - Nanocom :: (http://web.nanocom.it/download_i.cfm) ) to generate a map to suit the combination of Engine (EU2 or EU3) and the ECU model you have. The Defender maps come in 90 and 110 variants.

cheers
Paul