DebbieSidera wrote: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 gas left in the carburettors.
Hi Debbie, thanks for the feedback. Forgive my ignorance as I did not know your vehicle was non injection.
Could you send or post the psdata file to enable me to zoom on the spikes and measure accordingly?
I do feel as though these are induced into the signal as HT would still be generated with the king lead removed from the coil tower. (Would this be the “centre coil wire” removed)?
Could we have one leaking coil during cranking (King lead removed) and so generating the noise picked up by the current clamp?
Another theory to ponder over.
928NE wrote:Can you point me to more-verbose instructions on precisely what kind of saved file you seek and the procedure for saving it? I have looked through the application's on-line help and nothing stands out.
Hello and sorry for the lack of information re saving and sending. I have just simulated the error you have received and the save feature is not permitted. I have spoken to engineering and the save option is disabled as there is no relevant information gathered and so nothing to interpret. If a test could be completed however bizarre the results, we could look at the "signal" as this information would have been included in the saved file.
It would be interesting to see the AC ripple waveform from the PicoScope which you could save and post here or send to support@picotech. Whilst it may not answer the questions surrounding the PD error message it may assist with potential cylinder balance evaluation assuming there is some uniformity to the signal
With your waveform on screen, select FILE-SAVE AS fill out all the relevant details select OK-name your file, select CURRENT WAVEFORM ONLY (if this waveform has all the detail required) and save to a location on your PC.
You can then attach this file into an email or post the file here on the forum. Saving CURRENT WAVEFORM ONLY will keep your file size down as opposed to saving 32 or more waveforms within your buffer.
I hope this helps.......Take care......Steve