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| X | A: US 49 state, L: US, Cali, G: European |
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| X | Market of ECU - see chart below |
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| Code | Market |
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| Axx | USDM 49-state |
| Lxx | USDM Cali Emissions |
| xxx | JDM |
| Jxx | JDM |
| Gxx | EDM |
| Qxx | Oz DM |
| Cxx | Canadian |
| Nxx | usually factory reprogrammed, no particular market |
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%META:TOPICMOVED{by="blundar" date="1082561489" from="Library.OBD1LabelDecode" to="Library.LabelDecode"}% |
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%META:TOPICINFO{author="blundar" date="1077744191" format="1.0" version="1.1"}%
You can find out a lot from reading the label on a OBD1 ECU. This applies mainly to the Civic ECUs... dunno bount the integra ones.
37820-ABC-XYZ
| Digits | Meaning |
| ABC | Engine ECU designed for |
| X | A: US 49 state, L: US, Cali, G: European |
| Y | 0: 5-speed, 5: Auto |
| Z | even number: "11F0" board, odd number: "1720" board |
Example:
37820-P28-A52
- P28 = SOHC Vtec D16Z6
- A = US, 49 state
- 5 = Auto
- 2 = "11F0" board
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