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'''Mercedes AMG M113''', without compressor from factory (not M113K) but compressor DIY-added '''V8 engine 15426378 firing order''' (CL500 or similar chassis) [https://en.wikipedia.org/wiki/Mercedes-Benz_M113_engine M113 engine] 3 valves and dual sparkplugs per cyl (16 sparkplugs total), no VVTI '''Need some investigation (or hint, eg pinout) regarding M113 sectrig HALL sensor''' * engine harness schematic might also cast some light on this? ** although both GND and output seems to be connected to ECU (camHALL GND not connected to other GND-s in the harness, only inside the ECU) ---- '''Primary trigger VR (1072 Ohm)''' * Factory trigger seems to be "inverted", ** need to swap wires so that falling edges are correct at missing tooth ** This must be verified ---- '''Secondary trigger: 1 pulse per camrot''' Bosch 0.232.103.027 is this HALL sensor for sure? Output is LOW/HIGH or pulls to GND or something weird? '''pinout (uncertain)''' * '''GND''' from Bosch ECU/pin39 (low current connector) '''brown-green''' * '''is middle pin the output?''' pink = Bosch ECU/pin 40 (low current connector) * '''pinX is +12V''' (in factory harness same net as injector shared +12V) '''red-blue''' '''Big mistery with secondary trigger''', * '''Does not react to hammer moved near and away''' * Apparently same sensor as in [https://www.youtube.com/watch?v=wUMNT3ncpNg this m112 video] (and even same pins 39,40 in the factory engine harness, although the factory harness is not actually used), but our sensor does NOT react. ** '''IN THE VIDEO, middle pin seems to be GND''' (although he attached red probe there, it shows negative)... 12V when no iron, and 0V when ferromagnetic tool is close '''Possible causes''' * maybe custom harness is miswired (certainly if the sensor middle pin is GND) ** perhaps HALL sensors ruined? Or just not operate properly while connected wrong... * maybe some weird signal (frequency output like BMW/M52 ?) ---- '''DBW''' * currently factory ECU drives it, but VEMS is prepared (with bridgeoutput driver) ---- '''Ignition''' * 16 sparkplugs (dual sparkplugs per cyl) * only 8 passive ignition transformers ---- '''URLS''' * MembersPage/PeepPaadam/MercedesAMGSL - very similar * MembersPage/MercedesSelFivePointSix * MembersPage/AmgSlovakia much more sophisticated
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