As my Genboard v3.3 seems to be wired up (see MembersPage/JoelZernask), this page is about the configration.
Here are the specs of my engine:
- 1989 Audi PT 3,6 liter 32valve V8
- firing order: 1-5-4-8-6-3-7-2
- ignition type: wasted spark
- coils: two 2*2 coil packs (Bosch 0 221 503 407)
- note that you can get better advices if you publish mcd and mct dump, and the used firmware version
Trigger
Primary-VR
- NOT multitooth
- VR sensor (VR primary-trigger HW used; rising edge configured)
- 4 trigger pins on the flywheel, 50 degrees BTDC each cyl
- each pulse 50 degrees BTDC (+/- 1 degree).
Secondary-HALL
- 1 Hall cam sync pulse overlapping the crank trigger pin occuring 50 deg before #1 piston reach TDC in it's work phase.
- Rising edge 77d BTDC
- QUESTION: What rising edge degree should I mark in the MegaTune secondary trigger menu?
- it does not matter, as long as it's always between given 2 cyl's spark, the actual position does NOT matter
- QUESTION: What rising edge degree should I mark in the MegaTune secondary trigger menu?
Problems faced with the trigger during the installation process are here: MembersPage/JoelZernask/TriggerPage (chronologically listed, lots of BS)
'''Retard why ?
Currently the engine is running, but the ignition is 15 degrees too late (even if the primary trigger degree BTDC is marked "0").
- Can this be cured by changing the secondary trigger degrees?
- no. adjust ign_tdcdelay=0x64 (decimal 100, that is 50 degrees between trigger to TDC)
- see MembersPage/GaborRacz/NewAlsLaunchAndOthers to disable ALS originally so you're not tricked by bad settings
Ignition
Cylinders firing together are:
1 5 4 8
6 3 7 2
The coil packs are connected as follows:
EC36-pin35 to Coil 1
EC36-pin33 to Coil 2
EC36-pin34 to Coil 3
EC36-pin36 to Coil 4
Therefore cylinders are wired as follows:
Cylinders 1 & 6 to Coil 1 to EC36-pin35 drive00
Cylinders 5 & 3 to Coil 2 to EC36-pin33 drive01
Cylinders 4 & 7 to Coil 3 to EC36-pin34 drive02
Cylinders 8 & 2 to Coil 4 to EC36-pin36 drive03
ignchmax=03 (03..00)
IGNITION OUTPUTS TABLE: h[2]=03 02 01 00 03 02 01 00
Fuel
Sequential fuel delivery for Audi 3,6 V8 PT engine
firing order: 1-5-4-8-6-3-7-2
Bosch injectors 173cc
Constant for RPM calculation is 1500.
Req fuel is 16,7 (173cc injectors).