HG Motorsport Adapter wiring harness VAG 1,8T ignition coils conversion to high-performance coils (HGHSZADKB)

Adapter wiring harness for 1.8T - Conversion to TFSI ignition coils For old square ignition coil connectors (ME3.8) This adapter wiring harness allows all 1.8T engines with the old square ignition coil connector shape to be converted to modern high-performance TFSI ignition coils. Fits engine codes such as: AGU, AEB, ANB and many more Compact design - no cable clutter Our adapter cables are deliberately kept extra short, so that: no unnecessary cable loops are created the engine bay stays tidy there is no strain on the connectors a neat, close-to-OEM look is preserved Finally, an end to overlong universal adapters. How it works The adapter wiring harness is plugged in, plug & play, between: the original vehicle connectors and the new TFSI ignition coils. The modern TFSI ignition coils have an integrated ignition output stage, which eliminates the failure-prone external power output stage of the old 1.8T models. A matching bypass adapter for the external output stage is of course included. Advantages of converting to TFSI ignition coils Higher ignition voltage More stable ignition spark at higher boost pressures Cleaner and more even combustion Elimination of the old, failure-prone external ignition output stage Longer-lasting ignition coil technology Visually modern upgrade in the engine bay Especially on tuned 1.8T engines, the conversion ensures significantly more stable ignition performance. Important note This adapter wiring harness is exclusively for: 1.8T engines with square connector shape Motronic ME3.8 This harness is not required for ME7.x (electronic throttle) variants. Typical vehicles with AGU / AEB / ANB (examples) Audi A3 8L 1.8T VW Golf 4 GTI 1.8T Audi A4 B5 1.8T VW Passat 3B 1.8T (depending on the engine code - please check) Conclusion The adapter wiring harness is the crucial interface for a technically clean conversion to modern TFSI ignition coils on older 1.8T engines. Plug & play, compact, reliable - and the basis for a stable ignition system in both stock and tuned set-ups.

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