Focus RS fuel pressure fault Part 2 & How to test a 3 wire Pressure sensor
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- Опубликовано: 5 окт 2024
- Focus RS fuel pressure fault conclusion -
How to test a 3 wire Pressure sensor with basic tools
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Thanks for watching :)
Steve
* Disclaimer: Neither Simply Diagnostics, SimplyDiag Network Ltd, nor Steve Scott accept any liability for any loss, injury or damage to any person, property or vehicle as a result of techniques, tools or methods shown on this channel. Always follow the manufacturers instructions and abide by all local and national laws regarding safe working and environmental hazards*
Thanks for taking the time to talk us through the diagnosis. My simply diagnostics t shirt arrived today too. Cheers
Thanks for the support Matt, every little helps in the current climate 👍
Cheers Steve. Always good to save your videos in my favourites folder. When I get 5 mins I then go have a a play with a good sensor on my car to learn your art.
Thank you for taking the time to show the fix!
Excellent video and well done Steve!
Good to hear the customer is happy!!!
Steve thank you so much for your amazing, easy to translate content mate. Been a subscriber for a while now but recently really starting to gel with your videos, I never leave without learning something! Keep up the good work mate 👍 you're awesome
Thank you 😁
Wow I was really impressed with your approach and teachings / testing procedures Top man you really are awesome.
Thank you, believe it or not, this 16 minute video was over 5 hours work from start to finish. It makes it worthwhile to see everyones positive comments and thumbs, thank you 👍
Steve, brilliantly done again thank you for taking the time to show us how it’s done. I had a go myself, non start then cutting out when it did start with crank sensor fault. Customer fitted new sensor last summer, checked rpm signal and scoped it anyway, signal looked good to me and rpm.. so combined with it being new I discounted it, wasted my time going down the old rabbit hole, ended up putting a crank sensor on anyway and boom fired up. You make it look easy! it’s like watching snooker thinking yeah I could do that but turns out I’m rubbish at it haha, I’ll always have a go. Can’t wait for some training. Cheers
Its only looks easy because I had people that were willing to share their skill with me, it's the product of many, many, sleepless nights lol. Training pays, whoever you train with, go out and get some then get some more 🏆
@@SimplyDiagnostics I try my best, I don’t have anyone at work I can bounce ideas off of or learn from so I feel I have to spend hours in the evenings looking for information to help me diagnose faults. I haven’t had a employer willing to invest in training for the last 5+ years, so I’m even more great-full to guys like you who can give up time to teach others. I’ve tried the technical data sites like all data, Haynes pro etc.. which are great but the boss isn’t interested past the free trial period, obviously taking on these subscriptions is financially very difficult for the average tech however post COVID, I will be paying for training courses this year even if I have to take a small loan either with technical topics or the autoeducation academy, really looking forward to it. Thanks again Steve.
Good luck mate, there are some really great workshops out there willing to invest in the right people, put a post in the portal and Facebook group. Toolboxes have wheels for a reason 👍
So easy to over complicate things when your learning. fantastic walk through on the sensor and wiring steve. talk n chalk is where its at for me.
Thanks Justin 👍
Great video Steve. Good to see back making videos again
Been in the trade for 30 years and still learning new stuff. Keep up the good work pal
It’s about time :-D
Steve I have to say you certainly know what your doing and I’d trust you with my own car. And I don’t trust anyone, not even the missus painting a ceiling under the stairs, (I did it) lol
Thanks very much 😁, sincere apologies for the delay in publishing Pt2 👍
I enjoy all your youtube vlogs,but this three wire masterclass blew me away with your easily explained and thorough explanation.No guessing, no parts swapping and changing just cold hard diagnosis and correct results.Steve you are credit to the motor trade,Thank you for taking the time to help us all to develop and learn.You clearly had a tough year last year as many of us did, but please know you make a massive difference to a great many of us.Cheers.
Thanks for taking the time to do this video Steve I liked the way it was done with the Diagram and explanations- if you keep making them I’ll keep watching! 👍🏻👍🏻👍🏻
Thanks mate, glad you enjoyed it 👍
Very informative and conclusive test procedure form legendary Steve Scott , thanks very much for sharing, I remember that place when I done my ride along with you back in may 2019 ,
I already had a spare fuel rail pressure sensor lying around so I dropped it off at the dealership today to get it installed! Hoping the new fuel pressure sensor and fuel pump will finally fix my car!
Let us know if it fixed it 👍
Did your p08b2 code go away after replacing the fuel rail sensor and hpfp? My car is now working however the code came back.
No, all codes cleared after adaption reset etc.
@@SimplyDiagnostics dang ok, yeah I still have the code. And I have no clue what us causing it. Maybe I need another fuel rail sensor.
@@SimplyDiagnostics car is running great however so I am at a loss :/
Found this to be one of your best videos to date.. Very clear methology and explanation.. Appreciate all your time and effort put into all your videos.. I was just wondering when doing electrical tests should novice or inexperienced people be taught methods of testing with no risk rather than a small risk... would like to know people's opinions.. I'm noy being snotty just hope that doesn't appear negative as I've learnt something from all your videos
Hi Magic, thanks for the positive comments 👍the warnings and disclaimers are to protect me from ambulance chasers more than anything.
There's neglible risk when doing these tests as described. I've taught these tests to apprentices with no experience and used them thousands of times myself without incident.
There's certainly less risk than intrusive testing such as opening fuel lines etc.
Cheers 👍
Great video and great to see you back at what you do best.
Keep up the good work Steve , God bless and stay safe 👍
Awesome work keep up the good job
What happened when you tried tapping on the sensor, and what were the results?
Other than that, great thorough testing! Obviously so, because your awesome!
Thanks Steve!
Tap test revealed nothing conclusive Mile 👍
Nice follow up Steve, don’t forget the ohm meter is a safe way to test signal circuit integrity, most meters will only output 1/1.5v 👍🏻
Great point mate, I'll have to make a video featuring that bypass, I've avoided it until now as there is a bigger possibility of learners getting it wrong, confusing the meter settings, why were using the ohms function to output a voltage and letting smoke out 👍
@@SimplyDiagnostics it’s good to see you back 🤜🏻🤛🏻
Thanks mate 😁
Need to test your DMM before you try that. A couple of my Flukes will push over 7 volts into a high impedance 'scope or DMM. I've even got a 'scope capture of running one of them thru' the ranges but can't post images in yt comments.
Matt, feel free to share in the Facebook group or SimplyDiag.net, that would make a great topic 👍
You looked almost as blue as the car there Steve, great British weather :) I have a queation on the unplug it test regarding the signal wire. I know Paul Danner teaches the same principle where he says that you unplug the sensor and if you have your bias voltage there then you are done with that wire, the integrity is good. My question is what if that wire was corroded? If you unplug it and had corrosion then would you still not see good voltage as you would have no current flow? If it was an open or a short i can understand but corrosion makes me wonder. Maybe the voltmeter would pull it down is the answer? Cheers for taking the time to put the videos up and keep safe
If there was corrosion the bias voltage wouldn't be there, it has no strength to overcome even the slightest resistance
@@SimplyDiagnostics thanks for the information thats great
Great stuff as usual, would you consider adapting me, I'm only 64 on my next birthday, but I look Young for my age, lol, just good to have you back cheers
Well done Steve, another great video sir , Your Awesome as always 👍👍😎, were tough up north used to crap weather , we should have been born with webbed feet and fur 👍😂😉
Thanks mate 😃
Nice lesson for us (or at least for me).
I want you to tell me your opinion, Autodata vs Haynes vs Alldata. Have you 'check them' all ,and which one you think is better (according to your opinion).Thanks.
That depends on your situation, no single data source is enough. I run Alldata, Hella HGS, Bosch ESI and Haynes and there are still times I need to use the manufacturer portals.
@@SimplyDiagnostics
Thanks a lot for your reply. Appreciate it. That's why, sometimes, working in a specific brand, and having all the OEM package (tools, specs and wiring diagrams ,training , etc),you never going to feel that something missing from your ' toolbox ' .....
did the sensor cause the pump to fail? I think this is the problem im having.
This is how to test supply , ground for sensor and wiring to ECU .To test sensor I would put in a system with known pressure and check output .Cheers !
Let's not forget that we can also tee into the low pressure supply and verify with a transducer or guage - this is intrusive testing and we want to avoid that wherever possible 👍
There's also the issue that most rail pressure sensors are single use only and most manufacturers recommend that they be discarded when removed.
Cheers 👍
thanks for that Steve . loads of good info
Thank you 😁
Thanks for sharing Steve... Cheers.
Thank you 😁
please, explain under what circumstance normal incandescent test light will pull the 5v ref down
It depends on the current draw of your testlight 👍
Another top video thanks for your work
Thank you 😁
Asante sana..✍️
nice video Boss , cheers .
nice cuppa and you will be fine. very good content steve
Thank you 😁
Thank you Steve, Am I correct in saying if you put yourself accross the bias voltage ang the battery ground youcan pull bias voltage down. Probably best straight out the bath lol
Yes, bias voltage is very weak and carries no current at all.
Great tuff
Could I quickly test the three wires with a three wire potentiometer and watch scan data as i move the resistance up and down?
Possible depending on the exact specs of the pot but far quicker and easier to use a dmm and testlight.
Thanks a lot, you could also use a resistor like Scanner Danner wrote in his book. How did you knew that faulty sensor caused pumpe failure? Seems to me it was like , who was first chicken or egg dilemma
The evidence was in the fluctuating voltage in Part 1, koeo the voltage should have remained constant. If the HP pump was unplugged the system is perfectly capable of running at idle on low pressure supply only with a fairly constant output from the pressure sensor 👍
@@SimplyDiagnostics I missed that, thanks again yo are very good teacher