Opel Astra-J 1.4 Turbo ACDelco ECU Calibration File | Software 55581092 / ECU 55581098 | Stage 2 - Product specifications
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Stage 1 & 2 calibrations for Opel Astra-J 1.4 Turbo — ECU 55581098, prod 55581159 — sharper throttle, earlier boost and selectable road/track modes.
- Seller Bin
- Creation date
Stage 1 & 2 calibrations for Opel Astra-J 1.4 Turbo — ECU 55581098, prod 55581159 — sharper throttle, earlier boost and selectable road/track modes.
Stage 1 appears early in this file set, followed by Stage 2, each broadening the 1.4 Turbo’s usable torque band while keeping OEM smoothness. DPF is not fitted, but all EGR functions are disabled for a cleaner intake. Boost, load and torque limiters are lifted with conservative ignition tables so the six-speed driveline stays within factory margins. Cold-start, idle and part-throttle areas are retuned for stock-like fuel economy, yet boost builds noticeably sooner for livelier city driving and effortless highway merging.
Overview Feature list Copyright info Releases (1) Discussion
- EGR system fully disabled; related DTCs suppressed
- Boost, load & torque limiters lifted; ignition maps optimised for 98 RON
- Selectable Stage 1 / Stage 2 power via OPC (Sport) button
- Pop-and-bang over-run enabled only in Sport mode to keep normal cruising quiet
- Throttle-pedal maps sharpened for quicker tip-in without surge
- Vmax limiter removed for unrestricted top-speed capability
- CVN patch applied; flashable via OBD or bench with any ME7.6-capable tool
- Cold-start fueling and idle control refined for smoother warm-ups