Search found 16 matches

by dominic
Wed Nov 14, 2012 1:52 am
Forum: Diagnostic discussion
Topic: Motorcycle primary ignition voltage & current trace
Replies: 2
Views: 2333

Motorcycle primary ignition voltage & current trace

HOPWOOD MV F41000R MISS.psdata Hi guys. I have an MV that runs rough, like a missfire. I am wondering if you can help me to understand the trace I have taken? The voltage spikes at the end of the burn time and I have not seen this on anything I have tested previously, and looks wrong. Thanks very m...
by dominic
Sat May 19, 2012 1:43 pm
Forum: Diagnostic discussion
Topic: Ducati Multistrada 1000DS
Replies: 15
Views: 9992

Re: Ducati Multistrada 1100S

Hi, The voltages look odd there. Unless its an unusual CAN system (I am also not experienced on 2 wheels) the voltages look really odd 0 to 4V and 1V to 5V. When posting waveforms can you either post the waveform or use the Edit / Copy Entire Waveform As Image command. That allows us to check the s...
by dominic
Sat May 19, 2012 11:47 am
Forum: Diagnostic discussion
Topic: Ducati Multistrada 1000DS
Replies: 15
Views: 9992

Re: Ducati Multistrada 1100S

Please advise if I am posting incorrectly or if you would like this thread handled differently.

I am posting relevant wiring diagrams & CAN basic info in case it helps you to help me
wiring diagram 1.pdf
(189.35 KiB) Downloaded 562 times
wiring diagram 2.pdf
(228.28 KiB) Downloaded 335 times
by dominic
Sat May 19, 2012 11:30 am
Forum: Diagnostic discussion
Topic: Ducati Multistrada 1000DS
Replies: 15
Views: 9992

Re: Ducati Multistrada 1100S

Do I check the ECU sensor grounds in the same manner? ie black to groud & red to sesnor ground? What settings do you recommend on scope for these tests? I didn't explain myself all that well previously re the battery voltage reading as expected when ignition truned off. What I was truing to say was ...
by dominic
Sat May 19, 2012 12:57 am
Forum: Diagnostic discussion
Topic: Ducati Multistrada 1000DS
Replies: 15
Views: 9992

Re: Ducati Multistrada 1100S

Here is another.

I will look up all sensors etc running on CAN line & check connections etc.

I have another hour or so and have other commitments today unfortunately. Really looking forward to solving this.

Very interesting stuff.

Thanks for the help guys.

:D
by dominic
Sat May 19, 2012 12:56 am
Forum: Diagnostic discussion
Topic: Ducati Multistrada 1000DS
Replies: 15
Views: 9992

Re: Ducati Multistrada 1100S

Here is the CAN snapshot, I will add a couple please advise which is best capture settings
by dominic
Sat May 19, 2012 12:42 am
Forum: Diagnostic discussion
Topic: Ducati Multistrada 1000DS
Replies: 15
Views: 9992

Re: Ducati Multistrada 1100S

anthecat & alan, thanks for the other ideas.

I did take a sample with another battery however similar results & same error.

Thanks for advis eon sample rates. (Taking notes & samples for my library)
by dominic
Sat May 19, 2012 12:39 am
Forum: Diagnostic discussion
Topic: Ducati Multistrada 1000DS
Replies: 15
Views: 9992

Re: Ducati Multistrada 1100S

Dom It is one thing testing resistance & another load testing ! The grounds you checked check again with the bike running with the scope as a DMM. (black to ground (Batt -)red to ground being tested)) Does the dash receive the voltage from the ECU for the engine via CAN ? Grab a CAN capture anyway ...
by dominic
Thu May 17, 2012 12:17 pm
Forum: Diagnostic discussion
Topic: Ducati Multistrada 1000DS
Replies: 15
Views: 9992

Re: Ducati Multistrada 1100S

Alan, your suggestion of software issue is where I am at with it. The software is in the dash I would expect. If no software in dash then just the dash. I am just wanting to be able to diagnose and not guess. I tested all dash loom wiring voltages and interestingly, left hand switch block function r...
by dominic
Thu May 17, 2012 11:31 am
Forum: Diagnostic discussion
Topic: Ducati Multistrada 1000DS
Replies: 15
Views: 9992

Re: Ducati Multistrada 1100S

HI Alan, thanks for the speedy reply. I am at home now but can get more data tomorrow. I will upload or PM what little .psdata I have, hopefully it will help. It was batt voltage & current yes. Actual battery voltage when tested at battery is over 14VDC. Yes, dash has displayed voltage and is inaccu...