hello, my friend is trying to start his car with vems + loom adapter, he get's rpm, but can't start it.. can someone take a look at the trigger log, is it right for that nissan engine?
(http://s24.postimg.org/qdzq5szrl/Untitled.jpg) (http://postimg.org/image/qdzq5szrl/)
this is standart trigger settings from vems menu. 4 window to primary trigger 360 sec trigger, not sure is this correct when it does not shows any sec trigger
That's backwards. On the Nissan engines, the 360 window trigger is the primary and the 4 window is the secondary. There's actually configlets for the Nissan engines in the primary trigger setup window (at the bottom of the window).
Quote from: jrussell on November 01, 2015, 03:21:28 PM
That's backwards. On the Nissan engines, the 360 window trigger is the primary and the 4 window is the secondary. There's actually configlets for the Nissan engines in the primary trigger setup window (at the bottom of the window).
thank you :D that's our mistake :) yes, I used that configlet, just could not find info on nissans page :)
sadly nope, I was not wrong,
http://www.vems.hu/wiki/index.php?page=MembersPage%2FFeroNissanTrigger
with 360 connected to primary I'm getting 20000rpm on cranking :)
could it be firmware?
or could it be c103? it's standart at this moment :)
Hello Kamuto,
Connect and setup your Nissan trigger as follows:
- primary trigger goes to the x cyl number window HALL (in your case 4cyl = 4 window).
- secondary trigger goes to the 360 tooth.
- verify window sync size, this is done as follows:
- forcing the ecu in safe mode, easiest todo by changing the prohibit low byte from (xx which is last two number of firmware version) to some other number.
- make a triggerlog cranking the engine 8-10 seconds
- your triggerlog will have both primary and secondary pulses logged (sectrig only inside the primtooth window). As an example here is a picture of one i made during some testing: http://vems.hu/dave/nissan_360_16-12-8-4_syncup_good.png
- take notes of the window sizes, Nissan trigger will sync to the longest window; for example if you Nissan trigger windows are 8-2-2-2 than we need to sync to 8sectrig window -> sectrig ignore should be set to 5-6.
- make sure to put your prohibit low byte back to the previous value to revert the safe mode.
- after window length verifcation and correct configuration make another triggerlog to verify all is well
If you have any further questions are problem starting after that, please make a sharing report containing both triggerlogs (safe mode with prim and sectrig), triggerlog after longest window calibration and a short vemslog of the cranking sequence. I'll review and come back to you with my findings.
Best regards, Dave
worked a bit on it today, on safe mode it seems 16-4-8-12 sequence, trigger log looks like yours, sec ignore set to 14 now, the guy got timing light, and we will try to play with it tomorow :)
(http://s10.postimg.org/fbmvuxh5h/cranking.png) (http://postimg.org/image/fbmvuxh5h/)
(http://s10.postimg.org/s4azuusr9/safe.png) (http://postimg.org/image/s4azuusr9/)
(http://s10.postimg.org/b521flhjp/safe_mode.png) (http://postimg.org/image/b521flhjp/)
engine was started today by the owner ;)
Quote from: Kamuto on November 05, 2015, 11:48:31 PM
engine was started today by the owner ;)
Perfect news, thanks for the update!
Best regards, Dave
Hi Dave,
I have also a problem with a CA18DET engine to start up with the VEMS . Could please give me some advise about the problem ?
Only difference that the engine has currently a wasted spark igntion system .
Ecu is HALL / HALL , and ordered for Nissan 360 trigger .
First as You advise I set the Ecu to safe mode and made a trigger log and check the Nissan Count . Check the window lenght and the Nissan count "gauge" both came up to 15 !
Picture attached about the procces .
(http://www.kepfeltoltes.eu/images/2021/05/07/412safe_mode_trigger_log.png) (http://www.kepfeltoltes.eu/view.php?filename=412safe_mode_trigger_log.png)
(http://www.kepfeltoltes.eu/images/2021/05/07/485nissa_count_safe_mode_tn.jpg) (http://www.kepfeltoltes.eu/view.php?filename=485nissa_count_safe_mode.png)
Than put this number to "ignore sec trig pulses above" , but with number 15 - Ecu set back to normal mode - no more igniton ! With number 14, 13 ,12 works the ignition .
Trigger log also attached with number 14 in normal mode .
(http://www.kepfeltoltes.eu/images/2021/05/07/435nissan_trigger_log_nor_tn.jpg) (http://www.kepfeltoltes.eu/view.php?filename=435nissan_trigger_log_nor.png)
So i move with number 14 there for a try . Check the TDC with a timing light , endede at 110 degre .
I still could not start up the car .
Config file attached :
https://files.fm/u/jgv3z6dkg (https://files.fm/u/jgv3z6dkg)
Thank You to check it !