4jx1 ecu waveforms

[cartronix]

hi all,
newbie here.

i have a big horn with 4jx1 engine which now sitting on my garrage with an "ENGINE WONT START PROBLEM".
already performed OBD and seems all signals are ok.
checked CKP signal and seems ok with osciloscope and OBD scanner reports 100 - 200 rpm while crancking.
checked CMP with scope
oil rail pressure reaches 4-5 mpa in about 5 sec crancking (as reported by OBD scanner)
fuel going to rail ok
OBD reports P0201 (Injector Circuit Fault)

btw, im using launch x431which unfortunately doesn't have activation test feature for 4jx1.
so, i cannot test if ecu is sending current to injectors.

does anyone have an image of waveform of injector output for 4jx1 ecu?
i think this is the only way i could see if ecu is really sending signals to open the injectors.
i have already tried to hook my scope between pin 1 of j2 and pin 5 of j3 and i cant get any waveform.
some waveforms of CKP and CMP would also be helpful as i am not sure if i am getting the right waveform from my sensors.

hoping for some idea sharing...

thanks much!

[iananita]

What oil are you using?

[cartronix]

iananita,

am using 5w30 oil.
im getting about 4-5 mpa oil rail pressure while cranking.


thanks!

[iananita]

Have a look here
http://forum.australia4wd.com/index.php ... x1-30-tdi/

these boys love their 4JX1 engines! We stick to our mechanical diesels.