https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?board=picopub PicoScope - The Autonerdz Community Forums en-us The Autonerdz Community Forums Sun, 15 Nov 2026 03:58:24 GMT http://blogs.law.harvard.edu/tech/rss YaBB 2.5 AE Revision: 1.29 30 https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1788874163 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1788874163 Trevor@autonerdz.com (TrevorSchlientz) Mon, 9 Nov 2026 18:58:06 GMT I have it on good authority the new 8CH will be a ±200V scope not the ±100 as initially described.  <img src="https://yabb.autonerdz.com/yabbfiles/Smilies/disimulo.gif" border="0" alt="Smiley" title="Smiley" /> https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1786067351 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1786067351 Sun, 16 Aug 2026 12:47:48 GMT <a href="https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1786067351/39#39">JÜJA wrote</a> on Aug 15^th, 2026 at 8:07pm:<br /><div>Lucky you <img src="https://yabb.autonerdz.com/yabbfiles/Templates/Forum/tans/rolleyes.gif" border="0" alt="Roll Eyes" title="Roll Eyes" />. <br />I am surprised no valves were bent and the compression you had with the timing off. </div><br />Yea lol I don’t know how I didn’t bend valves. https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1083810928 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1083810928 Wed, 12 Nov 2025 18:03:01 GMT Thanks man, I didn't even know this existed! https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1745511509 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1745511509 alexchong234@gmail.com (autosparky) Thu, 15 May 2025 06:27:27 GMT I think it's been in the dream department for a lot of scope users. https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1736609818 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1736609818 Mon, 13 Jan 2025 02:19:56 GMT Thank you for your reply Grant.<br /><br />I actually do have 4 of the TA010. They came with an 4223 scope I recently bought from another nerdz member. An online search  didn't come up with more information, so I decided to ask here.<br /><br />Main reason to buy this scope was to have it at home and be able to access the library  <img src="https://yabb.autonerdz.com/yabbfiles/Templates/Forum/tans/huh.gif" border="0" alt="Huh" title="Huh" /> https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1734985972 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1734985972 Mon, 23 Dec 2024 20:32:52 GMT This is a comprehensive summary on the software improvements through 2024.<br /><br /><a href="https://youtu.be/_c-rRVilyfc?si=_jbBHFC34z37HMoz" target="_blank">https://youtu.be/_c-rRVilyfc?si=_jbBHFC34z37HMoz</a> https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1731022223 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1731022223 Fri, 8 Nov 2024 17:13:37 GMT Thank you for the reply.<br />There is no issues at the moment. I’m just trying to understand that scenario better. Yes I triggered on #1 and pick up the parade from the king lead.<br />I was under the impression that there was a lot of energy left after the spark because of the high spike and amount of ringing after the spark. https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1728777189 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1728777189 rayyergeau@gmail.com (rayray) Sun, 13 Oct 2024 21:17:47 GMT Looks like a secondary scope cable issue. I know in Pico 6, you need to click on the Colored Lead option when using the Colored leads to get accurate secondary waveforms.<br /><br />If you can scope your Mercedes coil primary volts, you will see the actual spark plug burn time waveform.<br /><br />This capture shows the primary coil winding volts and the secondary spark plug burn times, along with the primary winding current draw https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1715406950 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1715406950 Trevor@autonerdz.com (TrevorSchlientz) Tue, 14 May 2024 12:08:01 GMT <a href="https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1715406950/1#1">JÜJA wrote</a> on May 13^th, 2024 at 9:21pm:<br /><div>On an inline engine it's not possible to spot a jumped timing belt by RC as long as there is still some compression. The jumped timing will affect all cylinders equally....<br /><br />On a V-engine, depending on its design and the exact type of fault, you may see an entire bank lower than the other bank. </div><br /><br /><br />I can get behind this as a concept. <br /><br /><br /><a href="https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1715406950/0#0">frombaja wrote</a> on May 10^th, 2024 at 9:55pm:<br /><div>Can a variation in cmp/ckp correlation be found with only a voltage RC test in order to find/confirm a slipping crank key/reluctor or missing teeth on timing belt? </div><br /><br />I've been noodling on this and while I agree with JÜJA, I also think there are too many variables to consider this a reliable technique. If someone thinks I'm wrong, please teach me. <br /><br />Don't get me wrong, I've done countless RC tests using current alone, seen little variation between cylinders and moved on. Its fast and can tell us a lot of info but its not perfect. Even when you add a second channel and synchronize to I.D. a specific cylinder, its not perfect. I'm sure others will agree with me that if you have a situation with a broken valve spring you can have perfect RC test and still have a misfire from a base engine issue. BUT, if you have a broken valve spring that caused a valve to get bent and now there is no compression in that cylinder, an RC test is going to show it. <br /><br />We've discussed the merits of RC tests using strictly voltage instead of amperage in the hands-on classes I've done. IMO, using current is more beneficial than using voltage alone. My reasoning is that amperage can tell us how hard the starter motor had to work to roll the engine over, voltage just tells us that some amount of work was done. Going back to the earliest days of my training we were taught to use a carbon pile load tester for starters, batteries and alternators. I'll list the rules of thumb (That I was taught) for checking the amperage flow through a starter below. <br /><br />4 Cyl = ~150A<br />6 Cyl = ~200A<br />8 Cyl = ~250A<br /><br />Combining these specs with a concern of a broken belt or major timing chain failure we might be able to identify an issue. For example if I know an 8 cylinder should draw approximately 200 amps average cranking and I only measure 100. That might indicate there is little to no compression on the the whole engine. <br /><br />Hope this makes sense. Let me know your thoughts. https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1696877942 The Autonerdz Community Forums/PicoScope https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1696877942 Wed, 31 Jan 2024 19:32:59 GMT Thanks for posting this.  I just hooked up my Picoscope 4425A for the first time and immediately got the error message.  Going into Device Manager and unchecking the boxes cleared up the problem.