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P12 ECU Technical Reference

Technical reference for the P12 ECU used in 1992-1995 Honda Prelude S models equipped with the F22A1 engine.

Beginner 7

carotman Author

The P12 ECU is the factory engine control unit for the 1992–1995 Honda Prelude S, specifically configured for the F22A1 engine.

Component Overview

The following image illustrates the internal PCB layout and component placement for the P12 ECU.

P12 PCB Top View
Internal PCB layout of the P12 ECU
P12 PCB Detail
Close-up view of component placement on the P12 board
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Note

The P12 ECU utilizes the standard OBD1 architecture common to the 1992–1995 Honda chassis. Ensure proper grounding and power supply when performing diagnostics or modifications.

Applies to

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Honda

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Model Prelude
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