Description
This is OEM part 893907383B — a genuine used, tested Engine ECU Control Module sourced from the Audi 80 (B4, 1991–1996), a compact executive saloon that was the standard-bearer for Audi’s engineering values in the early 1990s, offering refined petrol engines, precise steering, and optional all-wheel drive.
The 893-series ECU oversees the engine’s fuel delivery and ignition management strategies, calculating injection timing and spark advance based on engine load, ambient temperature, and rpm signals. Its adaptive memory stores long-term fuel trim corrections to compensate for component ageing, helping maintain consistent performance over time.
Symptoms of ECU degradation on this model include hesitation when pulling away from rest, surging at steady motorway speed, emissions test failures despite serviceable catalytic converter and sensors, and on-board diagnostic codes that return immediately after clearing. In severe cases the engine refuses to run past idle speed.
Removed from a written-off vehicle and tested to confirm performance in line with the 893907383B OEM standard, this part offers a cost-effective alternative to a new or remanufactured unit. Professional fitting is advised, with ECU adaptation or coding likely required. Returns accepted within 14 days of receipt.
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/
