Here is a company that not only makes
USB O-scopes that plug into your computer
but have also spent a lot of money on education
about EFI and ignition systems.

If you are having trouble with your EFI perhaps
a USB O-scope might be a good investment.

http://www.picoauto.com/tutorials/
http://www.hensleytechnologies.com/pico/?gclid=CKSFgKeOrJkCFQO5Ggod02vxIg

Paul Lamar



I looked at the BitScopes years ago.  I liked them a lot, but haven't
gotten around to purchasing one yet.
http://www.bitscope.com/
http://www.bitscope.net/store/?p=view&i=item+2
BS310U - 100MHz - $626 - 2 channel

I googled "usb oscilloscopes" to see the what the USB o-scope
landscape looks like these days. They're becoming popular and
plentiful.  Here are some other *CHEAP* USB Oscilloscopes:

http://www.easysync-ltd.com/index.html?lang=en-uk&target=d3.html
PS40M10 - $199 - 5MHz - 1 channel
DS1M12 - $220 - 250KHz - 2 channel

http://www.hobbylab.us/Default.aspx?gclid=CNLp5fe8rZkCFQxinAodUWnCJw
PC USB Oscilloscope DiSco - $170 - 200KHz(?) - 2 channel

http://www.parallax.com/Store/Microcontrollers/BASICStampProgrammingKits/tabid/136/ProductID/46/List/1/Default.aspx
Parallax USB Oscilloscope - $140 - 200KHz - 2 channel

Maybe it's time to buy.  Then again, maybe it's time to hit Craigslist.

-Vince Orton