good or bad

Ask for and share advice on using the PicoScope kit to fix vehicles here.
Post Reply
ecosse
OneWave
OneWave
Posts: 30
Joined: Tue Dec 07, 2010 10:59 pm

good or bad

Post by ecosse »

car is ford escort 1.6 16v eecv

car is non start

has compresion
no air blocks or leaks
exhaust is not choked
has correct fuel presurre
has good spark
plugs seem wet

this is an injector waveform i took from no1 inj.

my thoughts are that the inj duration is very high i may be wrong though

and was thinking that there is a problem with some input into ecu or ecu itself which is causing this i may be tottaly wrong here

but would like to use the scope to find the fault i am a newbie so please be paitient

if anyone is thinking timing i think the same though would like to use the scope to prove this if i can thanks :D :D
Attachments
escort injector non start 2.psdata
(275.02 KiB) Downloaded 907 times

User avatar
Robski
Advanced User
Advanced User
Posts: 598
Joined: Tue Sep 14, 2010 6:36 pm
Location: Yorkshire

Re: good or bad

Post by Robski »

I'd say the pulse width is long !

How have you hooked up ?

Those voltages don't look right to me,should come down from Batt V to ground [0V] ??

ProDiag

Re: good or bad

Post by ProDiag »

Yes the pulse is around 10 times longer than it should be!

Check your ground reference connection as your voltages aren't correct.

Have you looked at the temperature sensor output?

ecosse
OneWave
OneWave
Posts: 30
Joined: Tue Dec 07, 2010 10:59 pm

Re: good or bad

Post by ecosse »

yea it seems very stange though have sorted out the issue's with scope now not the car yet and have some good samples they are to big to post here and i have posted them on autonerdzhttp://www.autonerdz.com/cgi/yabb2/YaBB ... 1295217520

Post Reply