Search found 815 matches

by Steve Smith
Mon Mar 24, 2014 11:59 am
Forum: Diagnostic discussion
Topic: Cylinder #1
Replies: 3
Views: 3582

Re: Cylinder #1

Hello Nicky and thank you for your enquiry. To prevent the pattern/waveform moving about your screen you will need to set a "trigger" to stabilise the waveform. Here is would be helpful for you to use the pre-set below. "Using the AUTOMOTIVE menu. Select AUTOMOTIVE-IGNITION-DISTRIBUTER-IGNITION SECO...
by Steve Smith
Thu Mar 20, 2014 10:10 am
Forum: PicoDiagnostics software
Topic: Cylinder Balance Test - Porsche V8?
Replies: 6
Views: 11004

Re: Cylinder Balance Test - Porsche V8?

No I did not had them connected. The F250 GT/L has two coils and two distributors. I just pulled the center coil wire of them. Also I disconnected the terminal of the fuel pump. May it could be the carburettors residual gas but after repeat the test several times.. i don't think that there was any ...
by Steve Smith
Wed Mar 19, 2014 5:10 pm
Forum: PicoDiagnostics software
Topic: Cylinder Balance Test - Porsche V8?
Replies: 6
Views: 11004

Re: Cylinder Balance Test - Porsche V8?

Hi Debbie and thanks for the feedback on this issue. Whilst there is real value in the Pico diagnostic cylinder balance and compression test on a multitude of vehicles we have to concede on the limitations mentioned with these "high cylinder count" engines. The spikes you mention appear to be evenly...
by Steve Smith
Tue Mar 18, 2014 4:55 pm
Forum: Diagnostic discussion
Topic: Opel Astra G 1.4 Misfire Problem
Replies: 4
Views: 5545

Re: Opel Astra G 1.4 Misfire Problem

Hello Antreas from Steve at Pico. Thank you so much for posting this information and your other posts. Sharing information like this demonstrates the value of the scope, and along with the waveforms included, enables users to build their own personal libraries based on "real life" case studies. All ...
by Steve Smith
Tue Mar 18, 2014 3:59 pm
Forum: Diagnostic discussion
Topic: Diesel exhaust waveform analysis
Replies: 9
Views: 7240

Re: Diesel exhaust waveform analysis

Hello and thanks for posting this waveform as exhaust and intake pulsations get you thinking for sure. The exhaust pulsation will be offset by one pulse to the right after your trigger on this engine, and so your analysis is correct looking at the image attached. What is interesting is the progressi...
by Steve Smith
Fri Mar 14, 2014 8:41 am
Forum: Introductions
Topic: New to forum
Replies: 1
Views: 2116

Re: New to forum

Hello Newt and sorry for my late reply. I have sent you a message that I hope will assist. Take care......Steve
by Steve Smith
Thu Mar 13, 2014 3:48 pm
Forum: Diagnostic discussion
Topic: exactly how rough is a rough idle?
Replies: 3
Views: 2486

Re: exactly how rough is a rough idle?

MIN AND MAX MATHS CHANNELS 2014-03-13_15-46-17.jpg Hello and thanks for taking the time to feedback. Trying to find a “one size fits all” accessory to determine rough idle was going to be ambitious to say the least, and the muscle car is just one example. Both the pressure transducers you mention a...
by Steve Smith
Thu Mar 13, 2014 1:54 pm
Forum: Introductions
Topic: GiGas from Denmark.
Replies: 1
Views: 2107

Re: GiGas from Denmark.

Hello and thank you for your post and sorry my delayed reply. Your English is fantastic and leaves me feeling guilty that I have not pursued another language skill. (We English have a reputation for lazy language skills) You have raised some very valuable points about future diagnostic procedures an...
by Steve Smith
Thu Mar 13, 2014 11:27 am
Forum: Introductions
Topic: New Pico User
Replies: 1
Views: 2083

Re: New Pico User

Hello Victor and thank you so much for taking the time out to post this feedback. Regarding the V8 cylinder balance test: I strongly suspect the issue surrounds the quality of the AC ripple evident at either the battery or the alternator, and that's not to say there is a charging issue, just that th...
by Steve Smith
Thu Mar 13, 2014 10:40 am
Forum: Automotive kit hardware
Topic: attenuator max input
Replies: 1
Views: 2863

Re: attenuator max input

IGNITION SPIKE.jpg Hello and thanks for the enquiry, sorry my reply is late This is an interesting point you have raised on one I have researched regarding the stated maximum input voltage of the attenuator. There is no doubt, as you have mentioned, that the ignition primary voltage can peak as hig...