Search found 45 matches

by DebbieSidera
Wed Jun 26, 2019 2:30 pm
Forum: PicoScope 6 Automotive software
Topic: Learning the First look waves
Replies: 3
Views: 268

Re: Learning the First look waves

Thanks Iver. The videos are pretty much just the theory of the tool. In my opinion there is only one pdf that is really good info. As always, there is a big step from the theory to the everyday world.
by DebbieSidera
Sun Jun 23, 2019 1:09 am
Forum: PicoScope 6 Automotive software
Topic: Learning the First look waves
Replies: 3
Views: 268

Learning the First look waves

Hi guys, I have a '53 Jaguar XK120 (straight 6 cyl) at the shop running pretty rough. I thought I was a good opportunity to learn about the First Look tool. Can anyone help to read/interpret these two files for cranking and idling. Also, I would like to know if I counted the cylinders correctly (I d...
by DebbieSidera
Tue Aug 01, 2017 6:10 am
Forum: Diagnostic discussion
Topic: Little bit of help to understand coil signal??? negative ?
Replies: 23
Views: 5318

Re: Little bit of help to understand coil signal??? negative

Debbie. Sorry to bang on about this but I'm not getting this, perhaps I need to learn something here ? The unit fails only over 5400 rpm. not following the breaker points. The ignition breaker points starting to float over 8800 rpm. There is a huge difference of 3400rpm there !!! If the Dino engine...
by DebbieSidera
Tue Aug 01, 2017 5:58 am
Forum: Diagnostic discussion
Topic: Little bit of help to understand coil signal??? negative ?
Replies: 23
Views: 5318

Re: Little bit of help to understand coil signal??? negative

Hi Debbie Maybe I'm a little late to the party, but missed this till now. All the Dino's we've had have been twin points, so sadly no direct experience of you single setup, but have a seen quite a few of these over the last 20years! One thing that comes to mind is "bounce" of the points? have they ...
by DebbieSidera
Tue Aug 01, 2017 5:44 am
Forum: Diagnostic discussion
Topic: Little bit of help to understand coil signal??? negative ?
Replies: 23
Views: 5318

Re: Little bit of help to understand coil signal??? negative

The only one who helped me here was Ben Martins.
by DebbieSidera
Wed Jul 26, 2017 2:58 pm
Forum: Diagnostic discussion
Topic: Little bit of help to understand coil signal??? negative ?
Replies: 23
Views: 5318

Re: Little bit of help to understand coil signal??? negative

STC wrote:
ScannerDanner has a good video on Spark Analysis.
Yes, I like the his videos. Last weekend I have been watching some of them and I ended buying his book.
by DebbieSidera
Wed Jul 26, 2017 2:51 pm
Forum: Diagnostic discussion
Topic: Little bit of help to understand coil signal??? negative ?
Replies: 23
Views: 5318

Re: Little bit of help to understand coil signal??? negative

Now if you cannot make that unit fail at 5500 - 6500 rpm then I see no issue. Then by pushing it to 8800 RPM Crank Speed you can make it fail. if my statement, figures & comprehension above are correct then you have "Created a Fault" not "Found a Fault" Are you asking it to perform outside of its d...
by DebbieSidera
Sun Jul 23, 2017 6:09 pm
Forum: Diagnostic discussion
Topic: Little bit of help to understand coil signal??? negative ?
Replies: 23
Views: 5318

Re: Little bit of help to understand coil signal??? negative

(over 5400 RPM engine has a drop of power). Its clear that the ignition unit can't follow the breaker points (Actually I had to go up to 8800 RPM of the synchrograph before the breakers points floated). In Idle and lower engine speeds everything does very well. If it fails at 5400Rpm then the distr...
by DebbieSidera
Sat Jul 22, 2017 7:11 am
Forum: Diagnostic discussion
Topic: Little bit of help to understand coil signal??? negative ?
Replies: 23
Views: 5318

Re: Little bit of help to understand coil signal??? negative

Debbie Nice Nails :) :) Moving on! If you were to cable tie a 4 wire 02 into the exhaust, power it to temperature,close to manifold as you could achieve and scope that alongside the ignition and fuel delivery you would be both belt and braces on either fuel or ignition loss. It would be additional ...
by DebbieSidera
Sat Jul 22, 2017 6:44 am
Forum: Diagnostic discussion
Topic: Little bit of help to understand coil signal??? negative ?
Replies: 23
Views: 5318

Re: Little bit of help to understand coil signal??? negative

You know what I find very interesting reading this thread! This country, the UK (GB) we are told that our vehicles must reach high standards for emissions purposes, looking at zero emissions at the tail pipe and all this technology on our vehicles were we are told must be there to combat these emis...