Description
Part number 038906019JM is an OEM engine control module for the <a href="https://giantparts.eu/brand/volkswagen“>Volkswagen Golf 4 and Polo fitted with the 1.9 TDI diesel engine — two of the most popular and enduring diesel platforms across the VAG range. Removed from a running vehicle and tested, this genuine used unit provides dependable OEM-quality performance.
The ECM manages the full diesel control cycle of the 1.9 TDI — governing pump-injection timing and fuel delivery quantity, EGR valve cycling, turbocharger boost pressure, glow plug pre-heating, and closed-loop emission diagnostics as specified by VAG’s diesel calibration data.
Symptoms of a defective ECU on the Golf 4 and Polo 1.9 TDI include difficulty starting, engine stalling, rough or lumpy idle, sudden power loss, black exhaust smoke, limp-home mode, and fault codes pointing to injection quantity deviation, EGR faults, or boost pressure irregularities.
This is an OEM-matched, tested used unit for the Volkswagen Golf 4 and Polo 1.9 TDI. Professional fitting is recommended; VCDS coding and immobiliser adaptation are likely to be required.
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/
