Chip ID? Early euro ETA

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  • cb750r
    Noobie
    • Jan 2026
    • 16

    #1

    Chip ID? Early euro ETA

    Does this look like a stock EPROM? I have a no 02 sensor car so I’m reluctant to stick a standard ETA chip for a North American car in my DME. My DME has a name written on it so maybe it’s been opened before.



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  • reelizmpro
    R3V OG
    • Dec 2003
    • 9497

    #2
    Yes, that's a stock chip. Since it's not soldered in, it shouldn't be a problem using a performance ETA chip.
    "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

    85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
    88 M3 - LACHSSILBER/SCHWARZE
    89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
    91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

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    • cb750r
      Noobie
      • Jan 2026
      • 16

      #3
      Originally posted by reelizmpro
      Yes, that's a stock chip. Since it's not soldered in, it shouldn't be a problem using a performance ETA chip.

      would the O2 sensor equipped cars not have a different map, or is the open loop map the same?

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