Sickcpe

How do I Match A ECU With An Engine? Is there a ID. Number that tells you whet ECU or Engine Goes Whiih What?

toyomatt84

iTrader: (1)

The middle octet will be the most crucial in identifying what ECU is needed.

Example: 37820-P72-A01
The "P72" portion refers to the chassis; in this case "P72" refers to a 96-00 OBD-2 Integra GSR.

For more detailed information: https://www.hondata.com/tech-ecu-identification

JRCivic1

P72 actually refers to ANY B18C1 (GSR) ECU, model years '94-01. The last 3 digits... the version... will dictate what year the ECU is for. In the example that toyomatt84 has given above, this would actually be the part number for the OBD-1 GSR ECU for model years '94-95. The "A02" version is the first year of the OBD-2 P72 ECU, found in the '96 GSR.

Many ECU types will NOT match the engine code or block/cylinder head markings, so I suggest you use an online parts catalog to look up what year and model the engine is from, then choose the "control unit - cabin" selection and check the part number of the ECU. Then you know.

If this is confusing, tell US what engine you are trying to match an ECU to and we can help.