ENGINE · 1992-2002
H22A tuning
H22A — Honda 2.2 NA high-revving (Prelude SiR / Accord SiR / Type-S). I4 NA DOHC VTEC, 2.2 L, 190-220 HP @ 7000 RPM stock. Cars: Honda Prelude BB6 SiR-S / Type-S, Accord SiR T (CL1), Accord Euro R (CL1).
Engine specs
| Engine code | H22A |
|---|---|
| Configuration | I4 NA DOHC VTEC |
| Displacement | 2.2 L |
| Production years | 1992-2002 |
| Stock power | 190-220 HP @ 7000 RPM |
| ECU family | Keihin / Hondata → |
Tuning stages on H22A
| Stage 1 | +5-12 HP |
|---|---|
| Stage 2 | +15-30 HP (cams + intake + headers) |
| Stage 3 | +150+ HP (turbo / supercharger conversion) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on H22A
Common DTC codes on H22A
Brands running H22A
Workshop workflow
- Read the H22A ECU via OBD or bench using your existing flasher (KESS3, AutoTuner, MPPS, Trasdata, FRF).
- Open Softechpro V5 and drag the .bin / .ori / .hex / .s19 / .frf onto the workspace. The Keihin variant is auto-detected.
- Pick the service tab and apply Stage 1 / 2 / 3 / DPF OFF / EGR OFF / AdBlue OFF as required.
- Save patched .bin — the outer CRC is recomputed automatically.
- Flash via your existing flasher. Adaptation reset via OEM scan tool if required.