Search found 287 matches

by victor2k
Tue Sep 10, 2019 6:39 am
Forum: PicoScope 6 Automotive software
Topic: Compression testing using the WPS500 Pressure Transducer
Replies: 15
Views: 4559

Re: Compression testing using the WPS500 Pressure Transducer

Yes, inertia is missed. Of the moving parts in the instrument. Or you think movement can be brought back to 0 speed in 0 time? That would be nice for law of physics. :smile Hello, Only the gauge precision will give this different results,I used WPS instead of conventional gauge :the measured values...
by victor2k
Sun Sep 08, 2019 11:53 am
Forum: Help me fix my car
Topic: Help for the newbie
Replies: 10
Views: 238

Re: Help for the newbie

Morning Thank you for reply, I'm abit confused why I need to set to DC as these are Inductive crank sensor 2 wires in a shielded sheath, so I thought these produced AC output. Hello, Because of noise present when engine is off(1,5 Vpp),this is a requested value at starting :) Also try to remove any...
by victor2k
Sun Sep 08, 2019 8:31 am
Forum: PicoDiagnostics NVH
Topic: NVH on a motorcycle?
Replies: 13
Views: 335

Re: NVH on a motorcycle?

Hello, You will need this adapter https://www.amazon.com/ScanTool-425801-OBDLink-USB-Diagnostic/dp/B005ZWM0R4 (this is a good ELM interface what cover ISO 15765-4 (CAN 250/500 kbps, 11/29 bit),ISO 14230-4 (Keyword Protocol 2000),ISO 9141-2 (Asian, European, Chrysler),J1850 VPW (GM),J1850 PWM (Ford))...
by victor2k
Sat Sep 07, 2019 8:05 pm
Forum: Help me fix my car
Topic: Help for the newbie
Replies: 10
Views: 238

Re: Help for the newbie

Hello,
Please add some car/engine/year info,a scan with stored faults can help.
Also make a new capture but selecting DC coupling for both channels(in your capture one was off) and a maximum resolution(8 bits for your scope).
Here is an example of good signals
Best regards
by victor2k
Wed Sep 04, 2019 4:59 pm
Forum: Diagnostic discussion
Topic: TOP ISSUE...
Replies: 14
Views: 608

Re: TOP ISSUE...

Hello,
Let's close the discussion, maybe you're right
PS.some (well known) script is used at idle/full throtlle/engine stop not at starting the engine so please specify more details
by victor2k
Wed Sep 04, 2019 11:55 am
Forum: Diagnostic discussion
Topic: TOP ISSUE...
Replies: 14
Views: 608

Re: TOP ISSUE...

Maybe because is hard to compress the gases, easy to emty the cylinder (Angular speed is variable using the starter)? Using your way you can find a wrong opening/closing of valves on a working engine :o Yes, everything is correct. But the point is the difference in time ... The larger the differenc...
by victor2k
Sun Sep 01, 2019 5:31 pm
Forum: Diagnostic discussion
Topic: TOP ISSUE...
Replies: 14
Views: 608

Re: TOP ISSUE...

Answer to your question: ........ Perhaps there is a problem with the mechanical part of the engine. Either there is air leak in the area of the first cylinder or the PCV system. ........ Your waveform confirms this: Maybe because is hard to compress the gases, easy to emty the cylinder (Angular sp...
by victor2k
Fri Aug 30, 2019 5:34 pm
Forum: PicoDiagnostics NVH
Topic: NVH on a motorcycle?
Replies: 13
Views: 335

Re: NVH on a motorcycle?

Thanks for the encouragement! Seems like it's at least worth a try, so I'll order the NHV starter kit. Being a BMW it has plenty of luggage space that I can put the laptop, Picoscope, etc. in. Finding something flat, steel and horizontal to stick the magnetic accelerometer too might be a problem; t...
by victor2k
Fri Aug 30, 2019 5:21 pm
Forum: Diagnostic discussion
Topic: TOP ISSUE...
Replies: 14
Views: 608

Re: TOP ISSUE...

Hello,
Have you ever heard an echo, the same phenomenon occurs in your case too.That is why the intake manifolds have certain shapes, the piston ends as well ... for air flow optimization,for better filling of the cylinders :o
Best regards
by victor2k
Sun Aug 18, 2019 1:21 pm
Forum: PicoScope 6 Automotive software
Topic: 2 x 4 Software.
Replies: 7
Views: 270

Re: 2 x 4 Software.

Everyone that has a four channel would likely buy another as two could be used separately on different vehicles or combined in the less common circumstance when you really need 8 channels. So much more versatile. I want 50 plus channels with amp clamps to monitor each and every fuse. And what amp c...