Old Link ECU sitting idle for years - internal battery life?
 

Hi all,

Apologies if this is a foolish question, but I couldn't seem to find any relevant info online - I've had a complete turbo kit for my NA6 sitting in the garage for close to 2 years, but I'm only just getting around to installing everything now. I had originally planned to run the previous owner's tune on wastegate pressure (~8 PSI) until I could get a proper dyno tune, but my question is: after the ECU (gen 1 Link) has sat for close to 2 years now, should I expect the ECU's internal battery to have died, and therefore the previous tune to be gone/be forced to set up my own base tune?

Again, apologies if this is a dumb question - I swear I'm rather handy with a wrench, but anything electrical tends to escape my grasp quite quickly lol.

Thanks in advance for any advice.

I can't speak with absolute certainty as I am not intimately familiar with LINK. But some cursory searching on the LINK forums leads me to believe it saves the tune in eeprom/non-volatile memory and as such you should be fine indefinitely (independent of any internal battery, which if it has one is likely used for a really time clock, but that seems unlikely)

I don't remember if the original Link used battery-backed NVRAM or if it had an EEPROM for the tune. It had very limited state so it might well have been EEPROM, in which case the battery wouldn't matter.

--Ian

That's great, thank you both for your quick responses. Much appreciated.