Can I put a used ECU in a 360?

Does your car start normally? If so it's likely you didn't deactivate the immobilizer before scanning...


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Hey DanNE!

Perhaps you have a Faulty Wiring or Connections: The wiring or connections between the ECU and the OBD port (where the scanner is connected) may have some form of damage or corrosion. This would prevent the scanner from reading the ECU data properly even though the ECU is functioning well. Thoroughly inspect the wiring and connections for any visible signs of wear or damage.

Immobilizer System: Since you mentioned that an immobilizer code was present earlier, it's possible that this issue has something to do with the immobilizer system. Although the alarm siren was replaced and is generally not associated with the immobilizer, if the replacement process involved any rewiring, there could have been some unintended effect on the ECU connectivity.

 

Hang on, you said the alarm siren was replaced? AFAIK the siren IS connected to the immobilizer. Aren't they are part of the same system? How much did you replace? Perhaps the siren needs to be programmed to the immobilizer? You might also check the OBD2 ports and pin connectors to see if something got bent. Good luck.

 

YES! Excellent point. Check it.

 

Hi guys thanks all for replying and helping out.

Today I tried scanning the car with immobilizer off and with engine running, in both cases the Right side ECU does not respond. The Recovery version is available however. Car runs great, so should I next look into the wiring between ECU and OBD port and assume corrosion or broken wires?

Would it make sense to swap left and right ECU to see if the problem follows the ECU?

 

Short answer: Depends. May or may not work .

Long Answer: If your LHS ECU has ever been fitted to the RHS of another 360 it will have paired up against the "rogue" cars immobilizer. Since it's fitted on your LHS it would not matter to your car , unless you're trying to do exactly what you want to try to do! Having the LHS "free" or unpaired is useful if you ever have to swap the immobilizer (due to failure) because it will pair against it and ignore your old immobilizer pairing which now sits on your LHS after swapping.

The problem comes from garage mechanics trying to fault find when they have more than a single 360 in the workshop and they suspect an ECU fault. Often the temptation is to grab the LHS ECU and put it on the other car to verify ECU faults. After this the ECU will never start the car if swapped over to the RHS. Unless of course you pm or others who can do it and you get them virginized (the ECUs). After such a reset they work like you are expecting.

I see at least a quarter of all the 360s ECUs are paired to another car so statistically you have a 1 in 4 chance your ECUs haven't had a promiscuous previous life [emoji16]



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And further on from your original question.

There are over 104 different software versions that I have officially collected over the years on just the 360 alone, in other words the chances of you getting the exact same version of the software are very slim. If they are mismatched you can cause big problems!

The only way therefore to do it properly is to get a backup of your original software and get it cloned over or look it up via Assy number, VIN and Engine numbers at Ferrari.

Not only that but even the same Ferrari part number can be a totally different software version so it's a huge minefield to try to do this and not make your car either very dangerous to drive (each bank fighting each other for control strategies like ignition timing on a common crank is asking for trouble!).

To add further to complications there are F1 and gated versions of the same software and upto 5 different versions per part official number! Plus different software for grey imports too.

Overall I wouldn't recommend therefore to try to do this yourself. I've got many years of experience handling all of this so pm me if you need more help.

Regards Trev