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renault trafic fuel pressure

Posted By ashhodges Friday, January 22, 2016 11:13:25 AM
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ashhodges
 Posted Friday, January 22, 2016 11:13:25 AM
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hi,

i have a 2006 renault traffic that is being a right pain.Crazy


the van came in as a non runner and has the following fault codes


d071 track 1 pedal sensor circuit
d091 sensor supply no.1 voltage
d067 fuel pressure sensor circuit
d074 boost pressure sensor feed fault


there is no fuel at the rail at all and is all being returned straight to the tank.


i have checked all wiring to the fuel pressure sensor and regulator on the pump, ive also replaced the sensor and regulator.
cam and crank sensor have been checked and are ok.
also ecu has been tested as ok.
i also had the high pressure pump tested.


anyone have any ideas? im pulling my hair out with this thing Pinch
any help would be very much appreciated
shaws
 Posted Friday, January 22, 2016 11:54:54 AM
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how do you know there's no fuel at the rail?have you got fuel at the filter bleedoff point?

Steve
ashhodges
 Posted Friday, January 22, 2016 12:03:08 PM
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i have manually checked by taking out the pressure sensor.

and yes i have fuel at the filter and at the high pressure pump but when cranking the fuel just get sent back down the return pipe.
SB126
 Posted Friday, January 22, 2016 12:14:43 PM
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are you saying that, No fuel is coming out of the high pressure pump, ?

but there is a good supply to the pump.?


And the pump is not faulty ?


One of those statements must be wrong.
ashhodges
 Posted Friday, January 22, 2016 12:26:52 PM
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yes
there is good supply to the pump and the pump has been tested to be good.

the pressure regulator in the pump is not opening to allow the pump to built pressure for some reason.

on live data the pressure regulator duty cylcle stays at 0% even while cranking.
Tismot
 Posted Friday, January 22, 2016 3:11:49 PM
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The root cause of your issues is within your first post !!

Why carry out all the parts darts ? Why are you checking the cam & crank sensors ?

Mark


Modern cars, Its all wizardry and witchcraft
Friday, January 22, 2016 3:13:59 PM by Tismot
ashhodges
 Posted Friday, January 22, 2016 5:59:27 PM
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the cam and cranks sensor was just the very first thing i checked and have not been replaced i simply just scoped them to check for the correct signals and sync.
Tismot
 Posted Saturday, January 23, 2016 3:00:35 AM
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The mind boggles, next time I get a warning light on the dash indicating a blown bulb I must check my tyre pressures.

Advice: locate the GFF for the DTC's you have and follow them,I feel your main issue is in front of your eyes.

Mark



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Trovs
 Posted Saturday, January 23, 2016 8:26:43 AM
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Id be checking the feeds at throttle pedal, boost pressure sensor, fuel pressure sensor with a wiring diagram. (as per your codes)


ashhodges
 Posted Monday, January 25, 2016 3:13:24 AM
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thanks for the help i have checked the 5v feed at each of them and only have 1.2v feed. now just to figure out why

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