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'''CAN messages for Audi A4 B5 chassis/dash (2001 A4 AWM 1.8t specifically) CAN_VARIANT_VAG_2001_A4_AWM_18T''' Jason requested for 2 v3 ECUs (with 4 IGBT and bridge interface output) * either v3 internal CAN (120 or 240 Ohm termination ?) => * or v3 2nd serial => AIM => AIM to CAN adapter (STM32F103) ** 2nd Serial and AiM->CAN would be preferred (-Jason) ** Yes, the 2 ECU's are made with 2nd serial exactly for this purpose ''Termination''' * The adapter Jason has used in initial work has a 60ohm termination, so '''120Ohm termination on the canbus adapter''' ** If it's wrong I can change it and report back here for clarity. * What is the exact application ? Audi A4 B5 chassis (2001 A4 AWM 1.8t specifically) factory dash ---- '''CAN IDs and messages''' The needed output is '''ID 0x280 at 100ms intervals''' * with Byte 6 being TPS (0x00 to 0xFA range) * and Bytes 3 & 4 are RPM (little endian: RPML is byte 3, RPMH is byte 4). * other bytes are 0 ? ** Correct (They aren't zero in the OEM ECU, but I don't have all the data, and other bytes being zero allows the tachometer to work fine) ---- According to our knowledge the VAG VW Golf 1.8T (year 2003) (CAN dash messages) is compatible with VAG Audi 1.8T CAN_VARIANT_VAG_2001_A4_AWM_18T that we tested against. * Jason confirms. We just installed a 2000 Golf IV 1.8t over the winter with the Aim -> Audi canbus adapter and the tach works great. Hadn't worked for 15 years since he had a competitor standalone in it prior.
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