Mercedes AMG M113, without compressor from factory (not M113K) but compressor DIY-added
V8 engine 15426378 firing order (CL500 or similar chassis)
[M113 engine] 3 valves and dual sparkplugs per cyl (16 sparkplugs total), no VVTI
Need some investigation (or hint) regarding sectrig
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 [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.
Possible causes
- maybe custom harness is miswired
- perhaps HALL sensors ruined? Or just not operate properly while connected wrong...
- maybe some weird signal (frequency output?)
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