Description
Listed here is OEM part 443907311B — a genuine used, tested Engine ECU Control Module for earlier Audi 80 and 100 models produced during the mid-1980s through to the early 1990s. The 443 part number prefix identifies this as a Bosch KE-Jetronic or L-Jetronic era management unit, correct for the petrol engines of that generation.
The KE-Jetronic and L-Jetronic systems managed by this ECU blend mechanical fuel distribution with electronic correction signals, adjusting mixture enrichment, ignition advance, and idle speed in response to inputs from the coolant sensor, throttle switch, and oxygen probe. The result is stable idle and consistent fuelling through the full throttle range.
Failure modes for early Audi ECUs of this type include black smoke at start-up from over-fuelling, lean running causing pinking under load, erratic idle that cannot be resolved by CO adjustment alone, or complete failure to start. Physical corrosion of the ECU’s internal circuit board is a known cause on vehicles of this age.
This module was sourced from a written-off early Audi and tested to verify functionality against the 443907311B original specification. Given the age of the platform, professional installation by a technician experienced with classic VAG electronics is particularly recommended. A 14-day return window is offered on this part.
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/
