Cars · Sensors
P04 ECU Technical Reference
Technical overview of the P04 ECU found in European Honda Civic models, including hardware identification and application data.
The P04 ECU was utilized in European-market Honda Civic vehicles equipped with the D15B2 engine and Dual Point Fuel Injection (DPFI) system. The hardware design is nearly identical to late-model PM5 ECUs.
Application Data
The following table lists confirmed P04 ECU variants and their corresponding vehicle applications:
| Model Year | Vehicle | Engine | ECU Part Number |
|---|---|---|---|
| 1992 | Civic 1.5 LSi | D15B2 | 37820-P04-G00 |
| 1993 | Civic 1.5 LSi | D15B2 | 37820-P04-G02 |
| 1995 | Civic 1.5 LSi | D15B2 | 37820-P04-G04 |
Note
The P04 ECU is specific to European market configurations and utilizes the DPFI fuel delivery system.
Hardware Overview
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Modification and Chipping
The P04 architecture supports modification for tuning purposes. Below are examples of a chipped P04-G01 unit.
*Top view of a chipped P04-G01 PCB*
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*Close-up view of the modified chip socket area*
Applies to
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Cars
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Honda
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Model
Civic