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CM11 Santa Fe Fuel Issue

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  #11  
Old 08-08-2023, 06:19 PM
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I wouldn't think so.
 
  #12  
Old 08-09-2023, 07:38 PM
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Batt to Start cable .16v
Batt to charge/alt cable (in fuse box) .13v
battery- to engine (lift lug) .3v (dirty contacts due to paint etc. But Voltage drop doesn't seem to be too bad)
there's 3 cables on positive battery post, 1 to starter, 1 from alt fuse in fuse box, where's 3rd located? I really don't want to pull the loom to bits just to find where it goes lol.
is there a way I can feed correct voltage to solenoid on high pressure pump to see if things are willing to build up to pressure & start? Just trying to confirm a voltage issue as I've been chasing this problem for months.
 

Last edited by AaronHenman; 08-16-2023 at 05:21 AM.
  #13  
Old 08-09-2023, 08:03 PM
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Stupid question,
icon of car with key in it, I'm assuming security system icon.
Should that be illuminated while cranking?
I've never paid attention to it before so I don't know if it's normal.
 
  #14  
Old 08-09-2023, 09:58 PM
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Just for the fun of pulling things to bits. (And didn't the engineers HATE mechanics the day they designed that set-up).
I've removed crank sensor, cannot get any ohms readings across any of the pins. Including while waving a spanner across the pick-up, tried waving a magnet across the pick-up and still no continuity.
 
  #15  
Old 08-15-2023, 12:14 AM
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Update,
crank sensor made no difference.
Wiring all within spec.
all ground points now cleaned & tight.
I attempted to upload a video so you could see the fuel pressure whilst cranking but it won't allow the upload.
Daytime temps in mid to high 20's °C
Nights down around 5°C

best way to check for signal to injectors? I'm doubtful all 4 injectors would fail at once but it's not unheard of.

Can I test fuel pressure OTHER than trusting the sensor through OBD?

Cheers
 
  #16  
Old 08-15-2023, 01:38 AM
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Had a mate tell me if these engines have a injector fail, they basically shut down all injectors. Is this correct? Should I be testing injectors first??
 
  #17  
Old 08-16-2023, 01:26 AM
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Leak off tested ok.
checked for pulse to injectors, NOTHING, including when started with brake clean.
ECU?
 
  #18  
Old 08-16-2023, 05:13 AM
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Crank and cam sensors signal good.
Anyone with an idea of next direction to look?
 
  #19  
Old 08-16-2023, 05:46 PM
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Noticed that the security system/immobiliser icon illuminates the moment you push start button.
bring on accessories, ignition or cranking, icon stays illuminated
 
  #20  
Old 08-19-2023, 04:40 PM
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Spoke with a diesel specialist today, been told if ANY diesel comes out return line upon cranking that the over pressure valve on rail is shot.... awaiting Monday to order part.
 
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