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  • Autoinform | Caution V Common sense.
    window of opportunity the engine not only running but on load and monitoring functionality in real time Back to the Pico I think firstly I had to establish best criteria from a good known sample the Z4 I decided to conduct a compression test in real time with the engine running the initial evaluation included a crank start run and acceleration profile of the engine compression performance Waveform 1 Z4 Note the overall profile and compression value expressed in voltage using the Pico pressure transducer Next we applied the same test in identical conditions to the 318i Waveform 2 318i Note similar crank start and idle values reinforcing earlier test results however on acceleration note a much lower cylinder pressure and more significant the compression loss on full load Waveform close up 3 The remarkable thing is that the compression anomalies can occur on individual piston strokes all fuelling and ignition had of course been removed from the test cylinder leaving only mechanical functionality responsible for the results So there we have it a internal mechanical problem what restrained us in forming a decision sooner was a lack of absolute proof not a bad thing but also the cost implications if we got it wrong Caution Verses common sense By Frank Massey Share this entry Share on Facebook Share on Twitter Share on Google Share on Pinterest Share on Linkedin Share on Tumblr Share on Vk Share on Reddit Share by Mail 9 replies Maurice Donovan says May 22 2014 at 7 31 pm Frank it is a whole different world out there once anyone with a small bit of common sense could fix there own cars but it is a different story in today s world of computers on wheels Like always loved your story and nothing beats the sort of prof we get by the use of our modern lab scopes and other sophisticated equipment we have available to us these days Your a world leader in the world of Diagnostics and we appreciate the huge contribution you and your son offer us Today it is all about science we have to prove what is wrong before we can fix the problem Reply Tom Harrison says June 20 2014 at 8 02 pm Fascinating diagnostics by a true professional Phil Ellisdin of Asnu says it all we can t all be the Frank Massey s of this world but with the right training and tools we can certainly improve our skills Regards Tom Harrison Asnu distributor for Canada Reply David says June 21 2014 at 8 43 am Frank just a thought from me It seems that you spent a good deal of time and expense on this vehicle only in the end although problem area has been diagnosed not to have it cured What was your customers reaction to your bill I m guessing that they would not want to go to the expense of engine strip rebuild especially if its a resale car point I trying

    Original URL path: http://www.autoinform.co.uk/caution-v-common-sense/?replytocom=3486 (2016-02-17)
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  • Autoinform | Caution V Common sense.
    window of opportunity the engine not only running but on load and monitoring functionality in real time Back to the Pico I think firstly I had to establish best criteria from a good known sample the Z4 I decided to conduct a compression test in real time with the engine running the initial evaluation included a crank start run and acceleration profile of the engine compression performance Waveform 1 Z4 Note the overall profile and compression value expressed in voltage using the Pico pressure transducer Next we applied the same test in identical conditions to the 318i Waveform 2 318i Note similar crank start and idle values reinforcing earlier test results however on acceleration note a much lower cylinder pressure and more significant the compression loss on full load Waveform close up 3 The remarkable thing is that the compression anomalies can occur on individual piston strokes all fuelling and ignition had of course been removed from the test cylinder leaving only mechanical functionality responsible for the results So there we have it a internal mechanical problem what restrained us in forming a decision sooner was a lack of absolute proof not a bad thing but also the cost implications if we got it wrong Caution Verses common sense By Frank Massey Share this entry Share on Facebook Share on Twitter Share on Google Share on Pinterest Share on Linkedin Share on Tumblr Share on Vk Share on Reddit Share by Mail 9 replies Maurice Donovan says May 22 2014 at 7 31 pm Frank it is a whole different world out there once anyone with a small bit of common sense could fix there own cars but it is a different story in today s world of computers on wheels Like always loved your story and nothing beats the sort of prof we get by the use of our modern lab scopes and other sophisticated equipment we have available to us these days Your a world leader in the world of Diagnostics and we appreciate the huge contribution you and your son offer us Today it is all about science we have to prove what is wrong before we can fix the problem Reply Tom Harrison says June 20 2014 at 8 02 pm Fascinating diagnostics by a true professional Phil Ellisdin of Asnu says it all we can t all be the Frank Massey s of this world but with the right training and tools we can certainly improve our skills Regards Tom Harrison Asnu distributor for Canada Reply David says June 21 2014 at 8 43 am Frank just a thought from me It seems that you spent a good deal of time and expense on this vehicle only in the end although problem area has been diagnosed not to have it cured What was your customers reaction to your bill I m guessing that they would not want to go to the expense of engine strip rebuild especially if its a resale car point I trying

    Original URL path: http://www.autoinform.co.uk/caution-v-common-sense/?replytocom=3796 (2016-02-17)
    Open archived version from archive

  • Autoinform | Caution V Common sense.
    window of opportunity the engine not only running but on load and monitoring functionality in real time Back to the Pico I think firstly I had to establish best criteria from a good known sample the Z4 I decided to conduct a compression test in real time with the engine running the initial evaluation included a crank start run and acceleration profile of the engine compression performance Waveform 1 Z4 Note the overall profile and compression value expressed in voltage using the Pico pressure transducer Next we applied the same test in identical conditions to the 318i Waveform 2 318i Note similar crank start and idle values reinforcing earlier test results however on acceleration note a much lower cylinder pressure and more significant the compression loss on full load Waveform close up 3 The remarkable thing is that the compression anomalies can occur on individual piston strokes all fuelling and ignition had of course been removed from the test cylinder leaving only mechanical functionality responsible for the results So there we have it a internal mechanical problem what restrained us in forming a decision sooner was a lack of absolute proof not a bad thing but also the cost implications if we got it wrong Caution Verses common sense By Frank Massey Share this entry Share on Facebook Share on Twitter Share on Google Share on Pinterest Share on Linkedin Share on Tumblr Share on Vk Share on Reddit Share by Mail 9 replies Maurice Donovan says May 22 2014 at 7 31 pm Frank it is a whole different world out there once anyone with a small bit of common sense could fix there own cars but it is a different story in today s world of computers on wheels Like always loved your story and nothing beats the sort of prof we get by the use of our modern lab scopes and other sophisticated equipment we have available to us these days Your a world leader in the world of Diagnostics and we appreciate the huge contribution you and your son offer us Today it is all about science we have to prove what is wrong before we can fix the problem Reply Tom Harrison says June 20 2014 at 8 02 pm Fascinating diagnostics by a true professional Phil Ellisdin of Asnu says it all we can t all be the Frank Massey s of this world but with the right training and tools we can certainly improve our skills Regards Tom Harrison Asnu distributor for Canada Reply David says June 21 2014 at 8 43 am Frank just a thought from me It seems that you spent a good deal of time and expense on this vehicle only in the end although problem area has been diagnosed not to have it cured What was your customers reaction to your bill I m guessing that they would not want to go to the expense of engine strip rebuild especially if its a resale car point I trying

    Original URL path: http://www.autoinform.co.uk/caution-v-common-sense/?replytocom=3492 (2016-02-17)
    Open archived version from archive

  • Autoinform | Caution V Common sense.
    window of opportunity the engine not only running but on load and monitoring functionality in real time Back to the Pico I think firstly I had to establish best criteria from a good known sample the Z4 I decided to conduct a compression test in real time with the engine running the initial evaluation included a crank start run and acceleration profile of the engine compression performance Waveform 1 Z4 Note the overall profile and compression value expressed in voltage using the Pico pressure transducer Next we applied the same test in identical conditions to the 318i Waveform 2 318i Note similar crank start and idle values reinforcing earlier test results however on acceleration note a much lower cylinder pressure and more significant the compression loss on full load Waveform close up 3 The remarkable thing is that the compression anomalies can occur on individual piston strokes all fuelling and ignition had of course been removed from the test cylinder leaving only mechanical functionality responsible for the results So there we have it a internal mechanical problem what restrained us in forming a decision sooner was a lack of absolute proof not a bad thing but also the cost implications if we got it wrong Caution Verses common sense By Frank Massey Share this entry Share on Facebook Share on Twitter Share on Google Share on Pinterest Share on Linkedin Share on Tumblr Share on Vk Share on Reddit Share by Mail 9 replies Maurice Donovan says May 22 2014 at 7 31 pm Frank it is a whole different world out there once anyone with a small bit of common sense could fix there own cars but it is a different story in today s world of computers on wheels Like always loved your story and nothing beats the sort of prof we get by the use of our modern lab scopes and other sophisticated equipment we have available to us these days Your a world leader in the world of Diagnostics and we appreciate the huge contribution you and your son offer us Today it is all about science we have to prove what is wrong before we can fix the problem Reply Tom Harrison says June 20 2014 at 8 02 pm Fascinating diagnostics by a true professional Phil Ellisdin of Asnu says it all we can t all be the Frank Massey s of this world but with the right training and tools we can certainly improve our skills Regards Tom Harrison Asnu distributor for Canada Reply David says June 21 2014 at 8 43 am Frank just a thought from me It seems that you spent a good deal of time and expense on this vehicle only in the end although problem area has been diagnosed not to have it cured What was your customers reaction to your bill I m guessing that they would not want to go to the expense of engine strip rebuild especially if its a resale car point I trying

    Original URL path: http://www.autoinform.co.uk/caution-v-common-sense/?replytocom=3795 (2016-02-17)
    Open archived version from archive

  • Autoinform | Caution V Common sense.
    window of opportunity the engine not only running but on load and monitoring functionality in real time Back to the Pico I think firstly I had to establish best criteria from a good known sample the Z4 I decided to conduct a compression test in real time with the engine running the initial evaluation included a crank start run and acceleration profile of the engine compression performance Waveform 1 Z4 Note the overall profile and compression value expressed in voltage using the Pico pressure transducer Next we applied the same test in identical conditions to the 318i Waveform 2 318i Note similar crank start and idle values reinforcing earlier test results however on acceleration note a much lower cylinder pressure and more significant the compression loss on full load Waveform close up 3 The remarkable thing is that the compression anomalies can occur on individual piston strokes all fuelling and ignition had of course been removed from the test cylinder leaving only mechanical functionality responsible for the results So there we have it a internal mechanical problem what restrained us in forming a decision sooner was a lack of absolute proof not a bad thing but also the cost implications if we got it wrong Caution Verses common sense By Frank Massey Share this entry Share on Facebook Share on Twitter Share on Google Share on Pinterest Share on Linkedin Share on Tumblr Share on Vk Share on Reddit Share by Mail 9 replies Maurice Donovan says May 22 2014 at 7 31 pm Frank it is a whole different world out there once anyone with a small bit of common sense could fix there own cars but it is a different story in today s world of computers on wheels Like always loved your story and nothing beats the sort of prof we get by the use of our modern lab scopes and other sophisticated equipment we have available to us these days Your a world leader in the world of Diagnostics and we appreciate the huge contribution you and your son offer us Today it is all about science we have to prove what is wrong before we can fix the problem Reply Tom Harrison says June 20 2014 at 8 02 pm Fascinating diagnostics by a true professional Phil Ellisdin of Asnu says it all we can t all be the Frank Massey s of this world but with the right training and tools we can certainly improve our skills Regards Tom Harrison Asnu distributor for Canada Reply David says June 21 2014 at 8 43 am Frank just a thought from me It seems that you spent a good deal of time and expense on this vehicle only in the end although problem area has been diagnosed not to have it cured What was your customers reaction to your bill I m guessing that they would not want to go to the expense of engine strip rebuild especially if its a resale car point I trying

    Original URL path: http://www.autoinform.co.uk/caution-v-common-sense/?replytocom=5545 (2016-02-17)
    Open archived version from archive

  • Autoinform | Caution V Common sense.
    window of opportunity the engine not only running but on load and monitoring functionality in real time Back to the Pico I think firstly I had to establish best criteria from a good known sample the Z4 I decided to conduct a compression test in real time with the engine running the initial evaluation included a crank start run and acceleration profile of the engine compression performance Waveform 1 Z4 Note the overall profile and compression value expressed in voltage using the Pico pressure transducer Next we applied the same test in identical conditions to the 318i Waveform 2 318i Note similar crank start and idle values reinforcing earlier test results however on acceleration note a much lower cylinder pressure and more significant the compression loss on full load Waveform close up 3 The remarkable thing is that the compression anomalies can occur on individual piston strokes all fuelling and ignition had of course been removed from the test cylinder leaving only mechanical functionality responsible for the results So there we have it a internal mechanical problem what restrained us in forming a decision sooner was a lack of absolute proof not a bad thing but also the cost implications if we got it wrong Caution Verses common sense By Frank Massey Share this entry Share on Facebook Share on Twitter Share on Google Share on Pinterest Share on Linkedin Share on Tumblr Share on Vk Share on Reddit Share by Mail 9 replies Maurice Donovan says May 22 2014 at 7 31 pm Frank it is a whole different world out there once anyone with a small bit of common sense could fix there own cars but it is a different story in today s world of computers on wheels Like always loved your story and nothing beats the sort of prof we get by the use of our modern lab scopes and other sophisticated equipment we have available to us these days Your a world leader in the world of Diagnostics and we appreciate the huge contribution you and your son offer us Today it is all about science we have to prove what is wrong before we can fix the problem Reply Tom Harrison says June 20 2014 at 8 02 pm Fascinating diagnostics by a true professional Phil Ellisdin of Asnu says it all we can t all be the Frank Massey s of this world but with the right training and tools we can certainly improve our skills Regards Tom Harrison Asnu distributor for Canada Reply David says June 21 2014 at 8 43 am Frank just a thought from me It seems that you spent a good deal of time and expense on this vehicle only in the end although problem area has been diagnosed not to have it cured What was your customers reaction to your bill I m guessing that they would not want to go to the expense of engine strip rebuild especially if its a resale car point I trying

    Original URL path: http://www.autoinform.co.uk/caution-v-common-sense/?replytocom=32760 (2016-02-17)
    Open archived version from archive

  • Autoinform | Caution V Common sense.
    window of opportunity the engine not only running but on load and monitoring functionality in real time Back to the Pico I think firstly I had to establish best criteria from a good known sample the Z4 I decided to conduct a compression test in real time with the engine running the initial evaluation included a crank start run and acceleration profile of the engine compression performance Waveform 1 Z4 Note the overall profile and compression value expressed in voltage using the Pico pressure transducer Next we applied the same test in identical conditions to the 318i Waveform 2 318i Note similar crank start and idle values reinforcing earlier test results however on acceleration note a much lower cylinder pressure and more significant the compression loss on full load Waveform close up 3 The remarkable thing is that the compression anomalies can occur on individual piston strokes all fuelling and ignition had of course been removed from the test cylinder leaving only mechanical functionality responsible for the results So there we have it a internal mechanical problem what restrained us in forming a decision sooner was a lack of absolute proof not a bad thing but also the cost implications if we got it wrong Caution Verses common sense By Frank Massey Share this entry Share on Facebook Share on Twitter Share on Google Share on Pinterest Share on Linkedin Share on Tumblr Share on Vk Share on Reddit Share by Mail 9 replies Maurice Donovan says May 22 2014 at 7 31 pm Frank it is a whole different world out there once anyone with a small bit of common sense could fix there own cars but it is a different story in today s world of computers on wheels Like always loved your story and nothing beats the sort of prof we get by the use of our modern lab scopes and other sophisticated equipment we have available to us these days Your a world leader in the world of Diagnostics and we appreciate the huge contribution you and your son offer us Today it is all about science we have to prove what is wrong before we can fix the problem Reply Tom Harrison says June 20 2014 at 8 02 pm Fascinating diagnostics by a true professional Phil Ellisdin of Asnu says it all we can t all be the Frank Massey s of this world but with the right training and tools we can certainly improve our skills Regards Tom Harrison Asnu distributor for Canada Reply David says June 21 2014 at 8 43 am Frank just a thought from me It seems that you spent a good deal of time and expense on this vehicle only in the end although problem area has been diagnosed not to have it cured What was your customers reaction to your bill I m guessing that they would not want to go to the expense of engine strip rebuild especially if its a resale car point I trying

    Original URL path: http://www.autoinform.co.uk/caution-v-common-sense/?replytocom=32753 (2016-02-17)
    Open archived version from archive

  • Autoinform | No can do, Yes CAN do….
    a murder scene and in order to solve the case we must carefully look at all the evidence He smiled enthusiastically at me and I couldn t help but think he thought I was a little mad he s probably right but it is usually a hereditary condition Upon my initial visual examination I found the following evidence Vehicle used to be a taxi Timing belt cover left off Turbo inlet and exhaust pipes left off Vehicle would crank run momentarily then die Jump leads on the passenger seat Nuts and bolts everywhere I felt there was enough evidence here to form a diagnostic plan and know where to start The vehicle battery was confirmed as dead so we initially had to replace it which allowed us to unlock the vehicle and carry out some electronic tests I then started to explain to Adam why it was important to gather such an important and accurate picture of what occurred at the moment of death He was even more intrigued and was quoted saying it s like CSI I went on to explain further about the key points what we had initially discovered and explain the importance of assessing the evidence very closely Used to be a taxi possible disturbance to CAN wiring network from taxi meter being removed Timing belt cover is the timing correct why is it left uncovered Turbo inlet exhaust pipe disconnected who and why Vehicle would start and then cut out immediately which suggests immobilisation The immobiliser on this model is in the steering column module and is linked via engine transmission on a CAN network The fact the steering column would unlock and crank suggests that there is no problem with start authorisation functionality Jump leads would suggest that massive inrush of current with flat battery could cause severe control module damage Nuts and bolts everywhere would normally suggest who ever has put it back together hasn t done a very good job or suggests an incomplete repair Due to the lack of history I kept an open mind After we had restored power to the vehicle we were able to conduct some initial tests using Autologic and carried out a quick test It wasn t possible to communicate to engine transmission or ABS module and fault existed for under and over voltage protected in every module able to communicate According to the central electrics 2 module DTC evidence suggested there was no communication between Engine Transmission and ABS control module We pushed the vehicle into the workshop and wheeled the Scope over and I decided to take a look at the CAN signal which was easily accessible in the boot on the battery monitoring circuit Both CAN high and CAN low looked healthy on the low priority network The next test was to check power to the engine transmission ABS module and after removing the relevant plastic trim and chopping my way through the jungle all power supplies proved ok Still no comms to

    Original URL path: http://www.autoinform.co.uk/no-can-do-yes-can-do/?replytocom=1546 (2016-02-17)
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web-archive-uk.com, 2017-12-14