Description
The Opel Astra G delivered a well-rounded combination of practicality, efficiency and driver appeal throughout its 1998–2004 production run, with GM’s engine management electronics providing reliable control of the petrol powertrain range. This ECU, referenced 09355929 (suffix CSSJ), is the original management unit for the Astra G petrol engine — factory-calibrated to the exact injection, ignition and emissions parameters for this variant. ¶ The 09355929 CSSJ module governs sequential fuel injection, ignition timing advance, idle speed control and on-board diagnostics for the Astra G’s petrol engine. Processing inputs from the crankshaft sensor, airflow meter, lambda sensors and coolant temperature, the unit continuously refines combustion parameters to maintain the power output, fuel economy and exhaust emissions that the original Opel specification defined across the engine’s operating range. ¶ Recovered from a professionally dismantled Astra G and verified through bench testing, this ECU is supplied in clean, functional condition. It offers Astra G owners and independent garages a straightforward path to restoring correct engine management where the original module has developed a fault — at a fraction of the cost of dealer supply for this generation. ¶ Cross-reference the full OEM number 09355929 CSSJ against the reference on your vehicle’s current ECU before ordering. Correct installation requires coding via a Tech2 or compatible Opel diagnostic tool to pair the unit with the immobiliser and initialise any required throttle or fuel trim adaptations.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
