As an old school mechanic who has never progressed beyond carbs and points distributer, this is the best clear understanding of how todays cars all work I have read. Bravo.
Now you started the chapter i want to know much about. I am all ears for you STEVE . Like today I was working on bmw 320d. I suspect low fuel pressure but there is no where to connect fuel pressure gauge. I saw 3 pin sensor on fuel line, but don't know to test fuel through that. I wish you gonna cover that. Your follower Moshitoa south Africa
If you watch through the whole video to the end (particularly from 17:30 ), he talks about the diagnostic port (OBD II) that all modern cars have that you can plug in and check things like fuel pressure using the car’s own sensors
Thanks, you asked for it some time ago... and here it is.. now for your car, check it on the ECU through the OBDII interface. You might have there the data you are looking for. Measuring on the sensor is not that straightforward. It all depends if the sensor is a direct cabled device or on the CAN bus.... anyhow this is coming.
@@D3Sshooter It depends on the amount of ethanol: For pure gasoline, this ideal ratio is 14.7:1. And then it drops: E10 (10% Ethanol): The stoichiometric ratio is 14.1:1. E85 (85% Ethanol): The ratio drops to 9.7:1. Pure Ethanol (E98): The stoichiometric ratio is 9:1. That 14.3 is more probably E5 the stoich value?
nowadays, for example, the output of pwm diesel injectors is a real incyclopedia of signals, each manufacturer uses a different code, bosch, siemens, delphi... and then within the signal there are several stages, electronics... the mechanical engineer's worst nightmare !
Yes indeed as many elements also are attached to the CAN bus and special coding is needed. of the PWM... It becomes more and more complex... so much for the KISS principle... Thanks for the comments
@@D3Sshooter The standardization by manufacturers, particularly output signals, would simplify a lot, but that was asking too much, especially when you have to make money...
As an old school mechanic who has never progressed beyond carbs and points distributer, this is the best clear understanding of how todays cars all work I have read. Bravo.
Thank you
You amaze me with you grasp of all things!
Thanks, I guess once a design engineer always a design engineer... I can't help it lol
Thanks Steve. Great explanation. 👍
Very welcome
Very good communication. Thankyou
Glad you liked it!
Very informative, thanks
Thanks for watching!
Now you started the chapter i want to know much about. I am all ears for you STEVE .
Like today I was working on bmw 320d. I suspect low fuel pressure but there is no where to connect fuel pressure gauge. I saw 3 pin sensor on fuel line, but don't know to test fuel through that.
I wish you gonna cover that.
Your follower
Moshitoa south Africa
If you watch through the whole video to the end (particularly from 17:30 ), he talks about the diagnostic port (OBD II) that all modern cars have that you can plug in and check things like fuel pressure using the car’s own sensors
Thanks, you asked for it some time ago... and here it is.. now for your car, check it on the ECU through the OBDII interface. You might have there the data you are looking for. Measuring on the sensor is not that straightforward. It all depends if the sensor is a direct cabled device or on the CAN bus.... anyhow this is coming.
Thanks for watching
nice video (but afr 14.7 normally ? )
14.3 to1is indeed the stochio value...
@@D3Sshooter It depends on the amount of ethanol:
For pure gasoline, this ideal ratio is 14.7:1.
And then it drops:
E10 (10% Ethanol): The stoichiometric ratio is 14.1:1.
E85 (85% Ethanol): The ratio drops to 9.7:1.
Pure Ethanol (E98): The stoichiometric ratio is 9:1.
That 14.3 is more probably E5 the stoich value?
@@mikakolari3201 Yes , it depends on the fuel composition. As I mentioned normal gasoline ... for others blends and types that is different..
Probably too late to be any use to you now, but s/Cranck/Crank/ for spelling and s/Pomps/Pumps/. Great topic, still watching the video!
Yes indeed typo's and own language interference . Thank you pointing that out...
nowadays, for example, the output of pwm diesel injectors is a real incyclopedia of signals, each manufacturer uses a different code, bosch, siemens, delphi... and then within the signal there are several stages, electronics... the mechanical engineer's worst nightmare !
Yes indeed as many elements also are attached to the CAN bus and special coding is needed. of the PWM... It becomes more and more complex... so much for the KISS principle... Thanks for the comments
@@D3Sshooter The standardization by manufacturers, particularly output signals, would simplify a lot, but that was asking too much, especially when you have to make money...