ykchong4 Posted February 1, 2020 Report Share Posted February 1, 2020 using M15A VVt with monsoon, can't record the trigger scope. Engine can start and running smooth, but the VVt no working because the trigger sync error I'm tried change trigger setup to swift VTC V1 or swift V2 VTC and trigger 2 VVT offset but still cant sync. How to check trigger signal rising or falling edge correct or not, when trigger scope is not available? sendtolog.pclr m15a.llg Quote Link to comment Share on other sites More sharing options...
cj Posted February 2, 2020 Report Share Posted February 2, 2020 can you please run a trigger scope with it idling and post this too? Need to see what the cam signal looks like. Next step after that is to run a cam angle VVT test Quote Link to comment Share on other sites More sharing options...
ykchong4 Posted February 3, 2020 Author Report Share Posted February 3, 2020 unfortunately moonson didn't have trigger scope function, i'm use normal oscilloscope record the crank and cam signal. Cj, do you able to see the rising or failing edge? Quote Link to comment Share on other sites More sharing options...
cj Posted February 6, 2020 Report Share Posted February 6, 2020 This isnt an engine I know that well, but as far as noise & signal strength, the signal looks ok. I did manage to find a known working cam + crank scope however, and the crank is the same, but cam is inverted, and the 2x extra tooth pairs look to be swapped around. The falling edges on the cam trigger look to be similar to the known good, but the link help file says this mode expects to see the tooth timing from the rising edge. Try it on falling edge for trigger 2 but i'm not sure that will really help. If that wont start at all, or it doesnt help, put it back to rising edge, and run a VVT cam test with it set to 6x pulses, then press f12 to view the tested cam angles, and post the screenshot of that up please Quote Link to comment Share on other sites More sharing options...
ykchong4 Posted February 6, 2020 Author Report Share Posted February 6, 2020 hi, engine can start with set trigger2 rising or trigger2 failing, please check the screenshot. Possible polarity of trigger2 (cam sensor) wrong connection? so the scope signal inverted? This engine got 2 type of cam sensors and i'm sure +12v & ground is correct connection or not. thanks for help Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 6, 2020 Report Share Posted February 6, 2020 Can you confirm if you have VVT turned off the engine runs ok? No trigger errors? And if you have VVT turned on does the engine still run ok/no trigger errors? I realise the VVT is still not working - but want to confirm if the trigger is ok first before we look at VVT. Quote Link to comment Share on other sites More sharing options...
ykchong4 Posted February 6, 2020 Author Report Share Posted February 6, 2020 when set VVT lockout RPM to 7000rpm no trigger error at all, engine run smooth. When set VVT lockout RPM to 1000rpm, trigger error just increasing non-stop, and the engine running no smooth. Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 6, 2020 Report Share Posted February 6, 2020 Ok, so that means it is not happy with the trigger either. We need to fix that before we can get VVT to work. Try using Mazda 3 trigger mode, this is very similar to the Suzuki but has the inverted cam signal. If that doesnt work then it will be worth trying the Suzuki J20A trigger mode as this looks very similar to yours as well (Change trig 1 from reluctor to optical/hall when trying this mode) Quote Link to comment Share on other sites More sharing options...
ykchong4 Posted February 7, 2020 Author Report Share Posted February 7, 2020 Mazda3 trigger mode no work, still got many error. but the suzuki J20A trigger mode work with proper offset, now VVTi function correctly, thanks Adam and CJ Quote Link to comment Share on other sites More sharing options...
Chipsminor Posted May 24, 2020 Report Share Posted May 24, 2020 Hello my friend @ykchong4 can i have your trigger settings please? I try to start a suzuki ignis with the same settings and i also have inverted cam trigger pulse! Any help will be appreciated! Thank you Quote Link to comment Share on other sites More sharing options...
ykchong4 Posted June 24, 2020 Author Report Share Posted June 24, 2020 this is my trigger setup, vvt works well no more trigger error. chipsminor please test it may not suitable for u Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.