Welcome to MLOC forum, can you let us know what car are u driving ?
if you are mentioning about RSM, My guess that ur car should be running on digital system.
Please check
1. Speed sensor (at gearbox)
2. Speed sensor cable , harness connection
3. Ecu speed signal power status....
RSM is connected to ur ECU to bypass the speed limit, it taps the speed sensor from ori, so check the hardness of ur RSM mayb disconnected, place it at a proper place.
RSM is connected to ur ECU to bypass the speed limit, it taps the speed sensor from ori, so check the hardness of ur RSM mayb disconnected, place it at a proper place.
i got a quotation of changing my td04 twin fin to td05 16g big twin fin using back the original housing...quoted around RM 1.1k plus totally overhaul the turbo....