CRANK SIGNAL ACCELERATION.psdata You have set wheels in motion in my head again and so I will try to capture a vehicle on site where by we can assess the compression waveform in relation to Cam and Crank correlation. Thanks again for the input Moving on a little from Arjen's input regarding cranksh...

2014-03-25_10-24-23.jpg Good morning Antreas and thank you for raising this interesting point. You are right that saving files with a large number of samples over slow time frames results in large file sizes and this can be a nuisance when trying to share such files. One choice is to use the “Curre...

2014-03-24_12-50-55.jpg Hello Greg and sorry for this late reply. How did you get on with this vehicle regarding code P1222? I have experienced a number of issues surrounding gas pedal position sensors where I have struggled to prove a pedal failure given I have acquired similar scope patterns to t...

Hi Simon, depending on the software version you are using the probe menu should already contain 2 x 2000 amp probe settings, 2000a/200 mode and 2000a/2000a mode. To download the latest version of PicoScope go to http://www.picoauto.com/software-picoscope-automotive.html. With the new software instal...

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...

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 ...

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...

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 ...

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...

Hello Newt and sorry for my late reply. I have sent you a message that I hope will assist. Take care......Steve