Factory OBD1 ECU ROM number to ECU number list. These references are from ECU's that we have logged for your assistance and for ECU identification purposes only. Remember, once an ECU has been socketed and a chip installed the factory ROM number is no longer relevant as the ECU will use the ROM loaded onto the chip rather than the factory ROM programming.

205

37820-PR3-J01

206

37820-P06-C50

211

37820-P07-C00

217

37820-P28-A02 (FACTORY CHIPPED)
37820-P28-L51 (FACTORY CHIPPED)

220

27820-PR4-L61

229

37820-P06-A00
37820-P06-L50

230

37820-P28-A50

231

37820-P06-L51

37820-P05-L00

232

37820-P06-A02
37820-PR4-A11

233

37820-PR4-A61
37820-PR4-L61

249

37820-P06-A01
37820-P06-C01
37820-P06-C51
37820-P06-L01
37820-P06-L51

251

37820-P28-A01
37820-P28-A51

273

37820-P72-Axx
37820-P72-C01

274

37820-P75-C51

300

37820-P05-A02

301

37820-P06-A02
37820-P06-A52
37820-P06-C02
37820-P06-C52

304

37820-P28-A02
37820-P28-A52

305

37820-P30-A00

332

37820-P75-C01
37820-P75-C51