GDI Engines Need
Engine-Matched Firmware.
Not Generic Kits.
Direct-injection combustion profiles require dedicated ECU firmware and injector maps. Every LyanteGAS GDI kit is calibrated per engine family — verified on live Changan, Chery, and Roewe platforms before it ships.
Combustion Timing That Standard ECUs Cannot Handle
GDI engines inject fuel directly into the cylinder at high pressure and precise crank angles. A port-injection controller mapped for MPI cannot manage GDI combustion events — misfires and knock follow.
LyanteGAS GDI ECUs carry separate firmware builds per engine family. Injector maps, lambda targets, and ignition offsets are set during live-engine calibration runs — not derived from generic look-up tables.
Validated on Chinese OEM GDI Engines
Changan GDI — 1.5T Four-Cylinder
Firmware build CS-GDI-15T maps injector pulse width against direct-injection crank-angle windows. Lambda correction runs closed-loop via wideband O2. Tested across 3,000 km fleet operation before distributor release.
Verified knock-free at 92 RON LPG on stock Changan tune. No ignition retard required above 2,000 rpm under full load.
Chery GDI — ACTECO 1.6T
ACTECO's variable valve timing creates injection window conflicts at low load. LyanteGAS firmware applies a cam-phase offset table, resolving lean-misfire events documented in field reports from Latin American fleets.
Cold-start enrichment calibrated down to 5°C ambient. Wiring harness plug-and-play on Tiggo 5x and Arrizo 5 body variants.
SAIC Roewe i5 — 1.5T SGE
Geely Emgrand — 1.4T JLH
SGE engine's stratified charge mode requires injection suppression during gas operation. Firmware build RW-SGE-15 disables stratified mode via OBD-II intercept, switching to homogeneous charge for stable LPG combustion.
JLH-3G14TD's twin-scroll turbo demands boost-referenced injector scaling. LyanteGAS ECU reads MAP sensor data to scale gas injection duty cycle in real time — no flat fuel table trimming.
Installation Questions Answered in Hours, Not Days
GDI troubleshooting requires knowing the exact firmware build, injector flow rate, and engine variant. Our technical team carries per-platform calibration records and responds with data, not generic advice.
Reach us via WhatsApp, WeChat, or email. Reference your vehicle platform and ECU serial number — we pull the calibration file and diagnose remotely within one business session.