36-2-2 Suzuki trigger implemented 2022-01-16 in VEMS firmware (1 day after trigger specification completed).
However, was originally specified wrong .... as tradition for 36-2-2-2 (was also specified wrong initially).
See MembersPage/BogusSuzuki36-2-2
Signalgen (z342), trigger detect firmware mod 1.2.44, release, configlet, testing done according to the specified wrong pulsetrain.
- Luckily apparently new firmware is not needed
- [trigger configlet] should still apply with minor config change secignore=01 for the new pattern.
The actual pattern:
http://www.vems.hu/files/MembersPage/Suzuki36-2-2/trig_07_camsync_clet.wav
http://www.vems.hu/files/MembersPage/Suzuki36-2-2/v3.3_u022060-2022-02-07-13.35.02.triggerlog
Note that sectrig pattern is 24 tooth based, not 18 teeth... (total is 3 groups 240 crankdeg apart not 4 groups 180 crankdeg apart)
Might need decode rework because of the originally bogus specified pattern...
- Try secignore=01 (instead of 02; 00 is unlikely to work well).
- If no success with secignore=01 and sectrig enabled, please report RPM and vemslog with sectrig disabled also
[trigger configlet] needs strobing or scoping, adjust tdcdelay and all the usual install stuff.
Syncs and continues to ignite
- Without camsync
- or with factory camwheel (tested with signalgenerator 1 1 2 2 pulses)
Should be possible to configure also to non-factory 1 pulse camsync (if chosen edge pulse position is not very close to end of missing tooth).
Primary trigger pattern
Suzuki m16 Euro5 engine from 2012 trigger is
36-2-2 (=32 teeth total) :
- 10 teeth and 2 missing
- 22 teeth and 2 missing
Bottom pic is Euro4 Suzuki 36-2-2-2 , a known existing variant
(already fully supported, configlets available) MembersPage/SuzukiThirtySixMinusTwoMinusTwoMinusTwo
which has
- 13 teeth and 2 missing
- 16 teeth and 2 missing, 1 tooth and 2 missing
That is 30 teeth total, 36-2-2-2 as we usually call.
Mounts on the same crankshaft (orientation fixed by the drill at 3 degree) but it is a LOT of work to replace, (whole engine disassemble work)
TODO: exact details
If the trigger pattern is known exactly by degree, including camsync, it can be implemented
- Numerical degrees, positions
- scopeshot, photo or trigger pattern, and/or reference
- TODO: triggerlog
- '''PLEASE PROVIDE cranking TRIGGERLOG with camsync enabled, falling edge
- (or rather separate triggerlogs, captured with falling and rising edges - burn and reboot between - files named descriptively)'''
Sectrig pattern, 4 groups (90deg = 180 crankdeg) is SAME as 36-2-2-2
- pattern and relative position to primtrig is also important
- 1
- 1
- 2 teeth (extra pulse appr 30 deg before?)
- 2 teeth (extra pulse appr 30 deg before ?)
- the last edge of 2nd teeth seems to be "in sync" with the last edge of 1 pulse
It is possible to grind off teeth from the camwheel.
2022.02.07. Question: How can I set this trigger without camsync?
The same configlet, just disable sectrig (no camsync; Burn and reboot).
DB - 02/08 - 11:27 - review of config: v3.3_u022060-A-2022.02.07-13.28.53_trigg_camsync.vemscfg:
- trigger configlet Suzuki_36-2-2_Camsync.txt is not correctly uploaded in this vemscfg
- to avoid further confusion, i have retested Suzuki 36-2-2 trigger on bench using the real cam pattern, this works perfectly.
- i have re-uploaded configlet [Suzuki_36-2-2_Camsync.txt] and also added [Suzuki_36-2-2_NoCamsync.txt] for your convenience
- download both files and copy them to your VT_INSTALL_DIR\configlets\trigger directory on your pc.
- after restarting VT the Suzuki 36-2-2 configlets can be found on VT->Base Setup->Primary Trigger Settings-> defaults (bottom of dialog).
- select the configlet of your choice, afterwards BURN and power cycle ecu.
- after these steps you should have proper sync for this trigger type but still need to adjust tdc_delay and trigger tooth by strobing.
If you run into any problems, please provide a triggerlog and vemslog (linke below this) of engine cranking 8-10 seconds without IGN and INJ fuse so i can review.
Best regards, Dave