Ask for and share advice on using the PicoScope kit to fix vehicles here.
ecosse
OneWave
Posts: 30 Joined: Tue Dec 07, 2010 10:59 pm
Post
by ecosse » Sun Jan 16, 2011 9:42 pm
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
Attachments
escort injector non start 2.psdata
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Robski
Advanced User
Posts: 598 Joined: Tue Sep 14, 2010 6:36 pm
Location: Yorkshire
Post
by Robski » Mon Jan 17, 2011 5:59 pm
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
Post
by ProDiag » Mon Jan 17, 2011 6:38 pm
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?