And thanks for the advice/suggestions too:)

I kinda thought he’d’ve (the mechanic bloke) done that to be honest, now I’m thinking otherwise. I could get all upset n angry that the fix hasn’t worked, but after nearly 40 years of owning cars I’ve realised that doesn’t fix it either. Like I said though, bright side, ecu appears ok. Will...

Latest update…sent ecu for swap and data transfer, installed it, no start.:( Got mechanic to plug his magic box into it, exactly the same error. P1602, Engine ecu and immobiliser module comms fail. Ah well, on the bright side, which I know most RR owners are familiar with looking for, it’s...

Bit of an update, have found a place in the UK that will take my ECU and transfer the data from it to a "virgin" (their words) one. Essentially a used/refurbished/reset one. Same DDE numbers, which is apparently the important bit. And part number of course. Then it's plug n play upon return. All...

Interesting…thanks for that mate. Since delving into this I’ve had so many conflicting answers. And then this…. The local LR dealer boss of the workshop bloke told me today that the “official” answer according to Land Rover is as you say, that no, it can’t be done. But then he went on to say...

Definitely will…funnily enough, that’s exactly what the mech tech told me. Wasn’t what I wanted to hear, but here we are:rolleyes:

Cheers for that mate, I did search for this problem but kept comin to a dead end…Think I’ll give it a crack, at this point I have nothing to lose really.

I actually got the best one I could lay my hands on, can’t remember exact specs, but do remember going for max cca recommended. And forking out accordingly… I know a dodgy battery can be the root of many evils, so yeah, wanted to get that bit right.

Have spoken with the bloke workin on it and he assures me all of the above has been thoroughly checked and rechecked, and I’m inclined to believe him:) What I really want to find out is whether or not a used ecu can be fitted and persuaded to work…a used one is around $200-$300, while new is...

Ha! Yup, been told similar things over the years too, but did I learn?...Well no, 'cause here I am.

Thanks mate, yeah have done that...kinda rushed in here, then figured out what I should do. Bit like when I got my first Range Rover really :D

I know...one of the perks of living in the deep dark south. Will check the rust situation, earth etc, the battery is less than a year old, so should be good. But can a used ECU be fitted and made to work with a different engine? Sorry mate, just saw the last line in your reply. All good.

So it turns out the engine ECU in my '03 L322 TD6 has decided to keep forgetting who the immobiliser module is. The diagnosis is that the engine ECU is at fault, and replacement is apparently imminent. My question is, is a used ECU able to be fitted and re whatevered to work with my engine? My...

Hi all, Firstly, I've been an invisible lurker here for a wee while now, and more often than not, someone has posted about the issue I would be having and I find a solution. Many thanks to you all. HOWEVER...turns out the engine ECU in my '03 L322 TD6 has decided to keep forgetting who the...