Description
This listing is for OEM part 443907403G — a genuine used, tested Engine ECU Control Module belonging to the Bosch Motronic or KE-Jetronic family as used across Audi 80 and 100 petrol models of the mid-1980s to early 1990s. The 443-series prefix places this unit firmly in Audi’s pre-B4 engineering era.
The 443907403G ECU integrates fuel injection control with ignition management — a unified Motronic strategy that calculates the optimum injection pulse width and ignition advance for every engine cycle. Correction values from the oxygen sensor, coolant temperature sensor, and air mass or throttle position inputs are applied continuously to maintain stoichiometric combustion.
A faulty ECU of this type may produce symptoms including prolonged cranking before the engine catches, poor economy from over-rich running at idle, hesitation under hard acceleration, or a strong smell of unburnt fuel in the exhaust. Vehicles may also fail emissions testing due to the ECU’s inability to hold correct lambda values.
Recovered from a written-off early Audi and tested against the 443907403G OEM specification, this module offers a reliable used replacement for a degraded or failed original unit. Classic Audi platforms benefit from installation by a technician familiar with older VAG systems. A 14-day return policy is provided.
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/
