Santa Fe TD engine cuts out - Hyundai Forums : Hyundai Forum
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post #1 of 7 (permalink) Old 08-11-2012, 01:20 AM Thread Starter
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Santa Fe TD engine cuts out

Hello to all on the forum I am a new member. I am really hoping someone on here has had the same problem as me, because I am tearing my hair out with this car.
Its a 2002 Santa Fe 2.0 turbo diesel. When driving the engine will suddenly cut out. Its as though the ignition has been turned off, there is no hesitation or warning, it just shuts down.
This is what has been done so far: New high pressure fuel pump fitted by main dealer in June. My mechanic has fitted a new high pressure fuel sensor, new low pressure fuel pump (at rear by fuel tank), changed relays around, checked all fuel injectors (found in good condition) and checked various connection plugs and wiring. At motorway speeds the engine will not cut, its only at lower speeds. When it cuts the EML comes on with a 'Fuel Pressure Fault' code. Sometimes the light doesn't come on. Sometimes the light comes on but will go out the next day. When the engine cuts out you have to wait 20 seconds before it will re-start. If you try to start before this the engine will only turn over without firing. The car has only done 79000 miles. The main dealer gave up and said they don't know where the fault is because the code is not specific enough.
Anyone got any ideas?
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post #2 of 7 (permalink) Old 08-17-2012, 07:29 PM
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To my knowledge a diesel engine will only stop when there is no fuel or f.i. electric loss cut out the injectors
You do get a pressure fault code.
Many pumps and sensors have been changed with no succes.
Is the purge valve of your fuel rail checked?
It drains surplus fuel back to the tank at to high pressure or low consumption (slow speed).
If it stays open to long or has difficulty to close it causes a pressure drop in your fuel supply so injectors cannot supply enough fuel hense the engine will stop or run badly.
The 20 seconds could mean a time to close the valve, so pressure can build again.
Good luck,
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post #3 of 7 (permalink) Old 07-17-2013, 04:16 PM
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Hi guys,

Hope you can help here - have a 2006 Hyundai Santa Fe (new model) 2.2 4WD Diesel Automatic.
Over the last 4 weeks, she has started cutting out whilst driving for no reason, dangerous to say the least....

Brought to a (non Hyundai) service centre yesterday, diagnostics passed, everything fine, they couldn't see anything...
Today it cut out again, tends to be on hills and turning??
Has anyone with a SFe seen anything similar with theirs?
Any help much appreciated
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post #4 of 7 (permalink) Old 05-24-2015, 02:00 AM
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Angry My engine cuts out too

My Santa Fe 2011 occasionally cuts out too. Always at low speeds and always when turning. There is no warning and no error code. The immobiliser light comes on when the engine cuts out without warning. This is very dangerous as you can not steer the car when this happens.

So far, my car has always restarted immediately when I turn the ignition key. My dealer has upgraded the ECU (Engine Control Unit ?) but this has had no effect other than from time to time my car will not start.
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post #5 of 7 (permalink) Old 10-17-2015, 05:38 PM
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:-( The same problem at a 2004 santa fe CRDI. The engine cuts out when I press the pedal. I already replaced the came positon senzor, the high Pressure pump, the fuel pump in tank, relays,the rail pressure sensor, the entyre fuel filtre Block. I checked the injectors, I replaced one of them.The same faulty code at 3 service centres: P 1181- low pressure in the fuelrail. Starting and driving perfect; then cuts out around 2000 Rot/ min. Any ideas?? CKS, ECU?
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post #6 of 7 (permalink) Old 10-18-2015, 09:10 AM
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Originally Posted by Decy View Post
I already replaced the came positon senzor, the high Pressure pump, the fuel pump in tank, relays,the rail pressure sensor, the entyre fuel filtre Block
WOW...starting with all the expensive guesses first, eh

You say it's starting and driving perfect but you then say it cuts out at 2000RPM? Does that mean the fault is intermittent?

It sounds like you might have a fuel leak. Have you done a leak off test on the injectors? Perhaps the rail pressure regulator (the DRV) is jamming open and is leaking the rail pressure back to the tank. Of course it could be a wiring fault with the pressure sensor making the PCM think you have low rail pressure when you don't.

I posted some info on rail pressure testing in the Getz forum a while back -> Getz 1500 diesel

If you have a multimeter that can display duty cycle you could connect it across the DRV connector and see what the control duty is. It should be about 20% at idle. If there is a leak the duty will be significantly higher because the PCM will try to close the valve more to maintain pressure in the rail.

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post #7 of 7 (permalink) Old 03-21-2016, 10:31 PM
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Smile Solution to Sante Fe cutting out

I have a 2013 Sante Fe sport and have the same problem. I think I found a solution. I know it sounds crazy but it has worked for about 2 months so far. It has to do with the ignition key. Take all of the keys off of your key ring and leave only the Sante Fe key in the ignition. I got this idea from my father in-law who had the same problem on an older Chevy. The idea is that the extra weight is causing a short in the ignition/starter system. Let me know if this works. I am hoping Hyundai will give me a million dollars for fixing this for them. 😀
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