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2002 renault traffic wont start

Posted By paul810 11/16/2009 3:34:39 PM
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paul810
 Posted 11/16/2009 3:34:39 PM
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Hi there i own the above van and it will not start the engine stop light continualy flashes with ignition on and i have connected an oebd code reader which states that there are no faults logged to read i have also removed the injectors and kept everything connected to them and cranked the engine over the injectors do not appear to be injecting any diesel but the pump is delivering diesel to the fuel rail and am i right in thinking that these common rail diesels do not rely on pump timing just pressure like multi point petrol injection. can i check the pulse to the injectors with a nurd light and do these engines and electrics suffer any common faults

regards paul

GreaseMonkey
 Posted 11/16/2009 4:23:36 PM
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If the engine stop light flashes there has to be a fault.

I have just fixed one of these with similar symptoms and it was the high pressure sensor on the common rail - But that MAY not be YOUR fault. I have also recently changes both high and low pressure pumps on a traffic as well.

Diesels are not OBD compliant so you may need to use a vehicle percific diagnosis equipment.

11/18/2009 3:07:21 AM by GreaseMonkey
Disgusted
 Posted 11/16/2009 4:24:19 PM
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What is it, a 1.9 DCi?

You are correct, the high pressure pump pumps up to pressure, and the injectors are opened electrically. I would have thought you could check them with a noid light if you can get one that fits, but I suspect the answer would be that they are not being triggered.

Not sure what the engine stop light flashing means- I would check fault codes for immobiliser as well to see if there is a DTC for key not detected.

Be careful working on common rail diesel as the pressures are 1500-2000 bar which will go straight through your finger.
GreaseMonkey
 Posted 11/16/2009 4:29:07 PM
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I would guess it's the fuel pressure sensor fault code being stored and that there is no "prime" from the low pressure pump.

But I am not a gambling man.
jimfree
 Posted 11/17/2009 3:13:12 AM
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the first thing to do is get it checked on a descent machine ,one where you can see live data then it might need
inlector backleak test or many other tests


?
paul810
 Posted 11/17/2009 8:03:13 AM
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Thanks for all your advise i will get a noid light and check for pulse on the injectors one thing i have noticed is that if you crack off one of the injector pipes to the injector there appears to be very little pressure in the line could this be the problem

regards paul

locrep
 Posted 11/17/2009 11:41:28 AM
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Hi Paul,I have just read your opening post, I believe for your safety & anyone else near the vehicle you need to look up the some info on these systems & the pressures these systems work at, you will realise you can not do testing in this way.

You need to start with a code reading & some live data information.

Good Luck Dave.  

SmileIf everything is coming your way, you are in the wrong laneSmile

paul810
 Posted 11/17/2009 12:12:59 PM
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Hi there i have just tested the pulse on the injectors with a noid light and there is no pulsing taking place my code reader does obd , can,  kpw and says there are no faults logged on ecu  someone as already replaced the sensor on the fuel rail and also the camshaft sensor looks new but i believe with the engine stop light flashing this may in its self stop the injectors firing am i right in believing this. A friend of mine owns a snap on scanner with live data flow shall i get him to try and reset the stop engine light and by the way have only just bought vehicle and it done only 80 miles before becoming a pain in but
locrep
 Posted 11/17/2009 12:51:16 PM
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Can you describe what light is flashing, colour/symbol & is it the glow plug warning lamp.

SmileIf everything is coming your way, you are in the wrong laneSmile
paul810
 Posted 11/17/2009 3:01:05 PM
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The light that is flashing  is the engine management light even when you crank it over and also above that and to the left the word stop is illuminated and that stays permanantly illuminated does this help you

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