Search found 40 matches

by eric989
Fri Nov 02, 2012 8:03 am
Forum: PicoScope 6 Automotive software
Topic: frequency test
Replies: 2
Views: 5803

frequency test

Hi,

As we know the PicoScope 6 can test frequency by selected "frequency" from the drop down menu with AC/DC option. But I found that the "frequency" option gone. Did Pico delete this test? Many thanks.
by eric989
Mon Aug 27, 2012 6:40 am
Forum: PicoScope 6 Automotive software
Topic: PicoScope 6.7 beta
Replies: 4
Views: 9149

PicoScope 6.7 beta

Hi, It is said that PicoScope 6.7 Beta software can change 4423/4223 to a data logger and save waveform directly into PC, when timebase is more than 0.1s/div. So we can test and record for a very very long time, not limited by 32M buffer. My questions are: How we can save waveform directly into PC a...
by eric989
Thu Aug 02, 2012 7:45 am
Forum: Diagnostic discussion
Topic: secondary ignition waveform
Replies: 3
Views: 6671

Re: secondary ignition waveform

Liteace wrote:What type of ignition system does it have ?
Ive never had any luck testing secondary ignition, Ive never seen a waveform look like it's supposed to look
it's DIS. One coil for two cylinders. Four cylinders.
by eric989
Tue Jul 31, 2012 3:38 am
Forum: Diagnostic discussion
Topic: secondary ignition waveform
Replies: 3
Views: 6671

secondary ignition waveform

Hi all. I tested a Buick 3.0 secondary ignition waveform and found that there should be a faulty.The "burn time " line have noisy. And the line won't drop to 0 after "burn time". Can somebody tell me what cause these ?
Many thanks.
Eric
by eric989
Sat Apr 28, 2012 7:12 am
Forum: PicoDiagnostics software
Topic: PicoDiagnostics result
Replies: 2
Views: 6925

PicoDiagnostics result

Hi all, I made a cylinder balance test by PicoDiagnostics software (comes with PicoScope6 version: 6.6.16.12 ).Channel B pluged in ignition signal as trigger. My PicoScope is 4223. But I cann't see the trigger signal and speed curve. I think that something must be wrong in the software. And notice t...
by eric989
Thu Apr 19, 2012 9:48 am
Forum: Diagnostic discussion
Topic: Can PicoScope test air/fuel ratio?
Replies: 0
Views: 5615

Can PicoScope test air/fuel ratio?

Hi all, I have two questions may somebody can help me here. Question 1: Can I use PicoScope to measure air fuel ratio of the tested engine? Maybe measure the length of burn time of ignition waveform, then to calculate the air fuel ratio, or some other methods. Is it possible to know the accurate ail...
by eric989
Fri Jun 04, 2010 1:09 am
Forum: Automotive kit hardware
Topic: how to analyse my lambda sensor waveform ?
Replies: 10
Views: 19493

Re: how to analyse my lambda sensor waveform ?

Why would the files need to be "re named"? This all looks a little "dodgy" I think? Pico 6 saves with a *.psdata file extension, whereas Pico 5 saved with the *.psd format. Whats going on? Hi Dave, Why I rename psdata to psd, it is because that " The extension psdata is not allowed " in this forum....
by eric989
Thu Jun 03, 2010 6:23 am
Forum: Automotive kit hardware
Topic: how to analyse my lambda sensor waveform ?
Replies: 10
Views: 19493

Re: how to analyse my lambda sensor waveform ?

Eric, The O2s in your captures are working fine. The reason you have a fat trace with all the vertical lines is noise from ignition events etc. Filter the signal to shave all that hair off for a cleaner signal. Just curious...why are you using PicoScope 5? Looks like you did this with a 3000 series...
by eric989
Thu Jun 03, 2010 5:40 am
Forum: Automotive kit hardware
Topic: how to analyse my lambda sensor waveform ?
Replies: 10
Views: 19493

Re: how to analyse my lambda sensor waveform ?

NigeC wrote:Hi Eric,

Change your collection time to 1s/div or 2s/div as a start then increase to fast idle and back to idle to see it reacting to changes in oxygen. :wink:
It is working :)

Regards,
Nige
Change the time base, Ok. Thanks, Nige.

Regards,
Eric
by eric989
Wed Jun 02, 2010 5:54 am
Forum: Automotive kit hardware
Topic: how to analyse my lambda sensor waveform ?
Replies: 10
Views: 19493

how to analyse my lambda sensor waveform ?

Dear all, These days, I tested two cars' lambda sensor,all are Zirconia Lambda sensor. The waveform is very strange, at least for me.I know little about lambda sensor. :lol: There are a lot of vertical lines upon the traces.And the traces are very big/wide. Could you tell me that what the traces mea...