Engine mechanical test

Ask for and share advice on using the PicoScope kit to fix vehicles here.

Engine mechanical test

Postby Cerciz » Fri Jan 09, 2015 1:38 pm

any help with in cylinder pressure transducer on common rail with piezo injectors(crank and run)on any car?
Cerciz
Newbie
 
Posts: 2
Joined: Tue Oct 07, 2014 1:00 pm

Re: Engine mechanical test

Postby AuthorMike » Tue Feb 03, 2015 9:46 am

Cerciz wrote:any help with in cylinder pressure transducer on common rail with piezo injectors(crank and run)on any car?


Hi There,

Can you give a clearer idea of what you are after? Have you checked our preset tests within the software?

There may also be some of what you are after within the Waveform Library?
Mike Valentine
Technical Author @ Pico Technology UK
AuthorMike
Pico Staff Member
Pico Staff Member
 
Posts: 302
Joined: Mon Jan 31, 2011 11:22 am
Location: UK

Re: Engine mechanical test

Postby Cerciz » Tue Feb 17, 2015 12:32 pm

Hello

Maybe i was not so clear,sorry for my english

Can we use pressure transducer to test compression,on running diesel engine with piezo injectors ,in a way that we do not cause those injectors get stuck(plug -unplug) or cause any damage to engine.

I want to know the procedure if any
No problem with the test on petrol engines or diesel

My concern are piezo injectors,making them stuck or damage during the test(engine runing)
Kind regards
Cerciz
Newbie
 
Posts: 2
Joined: Tue Oct 07, 2014 1:00 pm

Re: Engine mechanical test

Postby vasek » Thu Feb 19, 2015 10:50 am

It is possible to make adapters under glow plugs .In this case, the applied pressure transducers refrigerant from A/C MB :
Attachments
adapters for CDI.JPG
vasek
User
User
 
Posts: 11
Joined: Tue Feb 17, 2015 7:27 pm

Re: Engine mechanical test

Postby hbr » Mon Jun 15, 2015 6:17 pm

Hello,

Do you have captured waveforms with this diy ac pressure sensor setup?
hbr
Advanced User
Advanced User
 
Posts: 54
Joined: Tue Nov 08, 2011 10:15 pm

Re: Engine mechanical test

Postby volrem » Fri Jun 19, 2015 6:35 pm

vasek wrote:It is possible to make adapters under glow plugs .In this case, the applied pressure transducers refrigerant from A/C MB :


Hi vasek


What is pressure range for these A/C sensors? And do you have any waveforms to show?
volrem
Guru
Guru
 
Posts: 162
Joined: Fri Jan 03, 2014 3:43 pm
Location: Estonia

Re: Engine mechanical test

Postby vasek » Mon Jun 29, 2015 1:12 am

Sorry for my english.Most of all A/C sensors have range like this (1) ,all of them have liner and thermostability characteristic .
So,- on diesel engine, they will fit only on cranking or compression test.On gasoline engine they will work on crankig ,idling and even part load in working cylinder .For example in Honda Fit, pressure sensor-instead of second spark plug cyl1(2).
You can use it for sync cheсk as much(3).
In some case, with extension, they will work on idling with diesel(4).
But the latest sensors work on digital base(lin technology) and they will not fit.
For diesel ,best results will be with fuel pressure sensors from GDI or CGI system.Also you can apply sensors from ABS modulator or CDI rail,but without the necessary precision.
Attachments
AC pressure sensor.png
Honda Fit part load working cylinder.png
FORD FOCUS 1.6 l 105 hp sync plus Ps.png
diesel idling with extension.png
(7.25 KiB) Downloaded 96 times
vasek
User
User
 
Posts: 11
Joined: Tue Feb 17, 2015 7:27 pm


Return to Diagnostic discussion

Who is online

Users browsing this forum: No registered users and 0 guests