MembersPage/PeterJensenViper

Help needed.

Car Dodge Viper 10 cylindre ODD FIRE

Could be Thorbjorn Engdahl that made this car.

http://www.vems.hu/wiki/index.php?page=MembersPage%2FThorbjornEngdahl%2FVIPER

Can Vems control this car specially thinking of ignition.

The car is running but do not sound well. also burned a engine early this year.

Car is now running wasted spark

Config

http://www.vems.hu/files/MembersPage/PeterJensen/Viper/viper_v3.3_u011200-A-2018.10.26-16.49.23.vemscfg


Hello Peter,

Yes Dodge Viper v10 is fully supported using the stock ignition system (which is indeed wasted spark).

Best regards, Dave

- can any body verify the config Peter did upload.

the firing is not accurate on some cylinders! i think the ignition setup.

Best regards

Troels


Hello Peter/Troels,

I have reviewed your config "viper_v3.3_u011200-A-2018.10.26-16.49.23.vemscfg" and there are indeed some ignition configuration problems there; To avoid any unneeded verification (or confusion) please apply the setup from configlet "Dodge_Viper_V10_10+4_Camsync".

If you upgrade the firmware to 1.2.38 (latest stable), wire the coils as follows (also included in configlet txt):

You'll have confirmed good starting point from which to continue.

I hope this helps; if there are any further questions, feel free to ask.

Best regards, Dave


http://www.vems.hu/files/PeterJensen/v10%20starts.vemscfg

hi.

now engine starts but only on some cylinders

trigger angle is not the same as in the configlet.

does any body know the trigger phasing cam vs crank?

it fires 3times in a row one some cyl.

best regards troels

20181119_150638111.jpg

here is a picture of the coil charge on one cyl vs cam sensor

sorry for the upside down view.


Hello Troels,

I have reviewed "v10 starts.vemscfg", most importantly ignition output allocation; it does not match the settings from the configlet "Dodge_Viper_V10_10+4_Camsync" and will indeed lead to wrong ignition cycle.

To resolve:

I hope this helps, if there are any problems please supply a trigerlog and small vemslog of engine cranking 8-10 seconds without IGN and INJ fuse so i can review.

Best regards, Dave

ok i will try that

i have loaded the v10 10+1 cam

course i have no ignition with the +4

but i will try once again.

thanks for your patience

troels

hi.

the car is now running and have been on the dyno

ignition is working in the right order.

the default v10 10+1cam worked once i rewired the outputs

thanks for your advices

best regards troels