voltage spikes

pane · Post by **pane** » Tue May 09, 2006 2:31 am

G'day

I have a v3 board, ms-2, latest code, tfi and pwm idle valve.

After having alot of trouble with getting my car to run properly I had run through all the options i thought i had. I spoke to a friend i have met that is in the elctronics game and he thought that it would be good to put an oscillascope on the outputs to see what is happening.

The spout output has a large voltage spike and so does the injector outputs

.

So where to go from here, what should we be looking at and how to fix it?

Cheers

Morten VJ · Post by **Morten VJ** » Tue May 09, 2006 2:52 am

If it looks like this.
http://www.picotech.com/auto/waveforms/ ... multi.html
It's normal and nothing to worry about.
It's normal for an eletrical coil to behave like this.

BR

Morten

pane · Post by **pane** » Wed May 10, 2006 2:29 am

G'day

Thanks for that.
Is that the same for the spike on the spout output or just for the injectors.

Cheers