The Autonerdz Community Forums - injector rail range settings

	Welcome, Guest. Please Login or Register

Home

Help

Member Map

Event Calendar

The Autonerdz Community Forums › General Public Area › PicoScope › injector rail range settings

‹ Previous Topic | Next Topic ›

Pages: 1

Send Topic

injector rail range settings (Read 5,156 times)

darren s

Junior Member
Picogroup

Offline

Posts: 52

loxton
South Australia
Australia
Gender: male

injector rail range settings
Nov 8^th, 2010 at 4:41am

Hi Guys,
I am experimenting with the wps500 transducer and can't seem to get a consistant waveform from the pressure reg diaphram. using Range3 seems most consistant, is idle or holding at revs going to make a difference? (just closer pulses?)I have tried zoom3 but the screen allready seems quite noisy before I even start vehicle? any help or thoughts appreciated
cheers darren

IP Logged

Tom Roberts Autonerdz Administrator Picogroup Offline Autonerdz Founder Posts: 8,598 Olympia Washington USA Gender:	Re: injector rail range settings Reply #1 - Nov 8^th, 2010 at 8:57am Darren, If I understand the question right..... The WPS isn't sensitive enough to do fuel rail pulses hooked up to the regulator vac nipple. That's one thing the FirstLook sensor can do well that the WPS cannot.
Back to top	Tom Roberts Forums Administrator IP Logged

PEDRO SANCHEZ Guru Member Picogroup Offline Posts: 467 Chicago Illinois USA Gender:	Re: injector rail range settings Reply #2 - Nov 8^th, 2010 at 8:58am Can you post your capture please?
Back to top	PEDRO SANCHEZ IP Logged

PEDRO SANCHEZ Guru Member Picogroup Offline Posts: 467 Chicago Illinois USA Gender:	Re: injector rail range settings Reply #3 - Nov 8^th, 2010 at 9:07am Hi Tom Looks like we posted at about the same time. I haven't tried the WPS on a reg yet. dcsvan, with the right adapters you can hook up to the fuel rail and measure actual pressure drops.
Back to top	PEDRO SANCHEZ IP Logged

autosparky Super Nerd Picogroup Offline blind worker Posts: 2,537 Porirua New Zealand Gender:	Re: injector rail range settings Reply #4 - Nov 8^th, 2010 at 1:59pm I tried direct fuel pressure couple of times but a system with good pump flow tends to flatten any pulses
Back to top	can't see, can't hear, can't remember IP Logged

darren s Junior Member Picogroup Offline Posts: 52 loxton South Australia Australia Gender:	Re: injector rail range settings Reply #5 - Nov 8^th, 2010 at 2:16pm thankyou for the replies, I will try hooking up to the fuel pressure and see if I can get a some signal.
Back to top	IP Logged

PEDRO SANCHEZ

Guru Member
Picogroup

Offline

Posts: 467

Chicago
Illinois
USA
Gender: male

Re: injector rail range settings
Reply #6 - Nov 11^th, 2010 at 7:23pm

I was looking through some files I had stored and this is what I found.

The scope is set up at 5 sec/div.

CH A #1 sync
CH B WPS at rail

There are no pulses visible until you zoom in horizontally.

It appears that each injector drops an average of 2.25 PSI.

The file was 9MB and too large to post.

Hope these pics help.

740rail.JPG (Attachment deleted)

rail.JPG (95 KB | )

PEDRO SANCHEZ

IP Logged

Pages: 1

Send Topic

‹ Previous Topic | Next Topic ›

« Home

‹ Board

Top of this page

Autonerdz forums