Megane 2 1.5 dci bad running

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rachid06
Posts: 3
Joined: Mon Jun 11, 2018 10:31 pm
Currently Drives:: Renault megene 1.5 dci expression luxe 2003

Megane 2 1.5 dci bad running

Postby rachid06 » Mon Jun 11, 2018 10:50 pm

hi everyone ,
I have a megane 2 1.5 dci from 2003 and its runs bad sometimes
when i do i diagnostic it gives me the following error codes
===>DF053 rail pressure regulation , hight flow minimum
===>DF053 rail pressure regulation function at maximum limit
===>DF053 rail pressure regulation function at mimimum level

Look also at my youtube video so you can hear the noise that my car makes when it runs bad
https://www.youtube.com/watch?v=qBf4-OfaL3Q
if someone can help me??

Let me know ....

grandadbobby
Advanced Driver
Posts: 499
Joined: Thu Feb 16, 2017 9:05 pm
Currently Drives:: megan dynamique estate 1.9dci

Re: Megane 2 1.5 dci bad running

Postby grandadbobby » Tue Jun 12, 2018 12:09 am

Hi,
this code can be triggered by many things but if l were you l would :-
Check for air in system and while engine is running, bleed the injectors.
If not done lately, replace fuel filter and check old one for metal bits with a magnet.
Make sure it is bled properly and check with a clear pipe on the return line for bubbles.

Have to say that from video, when restarted it sounded ok, suggests maybe poor electrical contact at either pump pressure control valve or rail pressure switch.
Disconnect them, check wires and clean them and try again.
None of these steps will cost anything except for filter but need eliminating.
After that it might get costly especially if you find metal bits in filter.
Good luck
Bob.

rachid06
Posts: 3
Joined: Mon Jun 11, 2018 10:31 pm
Currently Drives:: Renault megene 1.5 dci expression luxe 2003

Re: Megane 2 1.5 dci bad running

Postby rachid06 » Tue Jun 12, 2018 4:38 am

Hi
Me again
2 years ago i changed 4 new injector (1700euros)
And 3 months ago i put a new Common Rail diesel pressure regulator and the garagist sad to me that he didnt would metal parts in the old part

And 2 months a ago i changed also the https://m.ebay.com/itm/FUEL-RAIL-HIGH-P ... r=1&_rdt=1

And i problem was stil there
1 week out of nowhere ths problem went away for 2 months till now...
I will post photo's later this day

grandadbobby
Advanced Driver
Posts: 499
Joined: Thu Feb 16, 2017 9:05 pm
Currently Drives:: megan dynamique estate 1.9dci

Re: Megane 2 1.5 dci bad running

Postby grandadbobby » Tue Jun 12, 2018 5:55 am

Hi,
if it is intermittent and not all the time, the chances are it's electrical bad connection somewhere, even a broken wire. Sometimes a wire can break inside it's plastic covering and can only be found by testing continuity, very hard to find.
Look on you tube about testing continuity if you don't know how.
Have you had bad rain when it happens, check all the engine fuse box and wires underneath it and connectors to the ecu.
Do you have any other fault codes or just this one.
Bob.

rachid06
Posts: 3
Joined: Mon Jun 11, 2018 10:31 pm
Currently Drives:: Renault megene 1.5 dci expression luxe 2003

Re: Megane 2 1.5 dci bad running

Postby rachid06 » Tue Jun 12, 2018 9:23 am

Hey
I've had the problems for several days now and it's true that the problems have come on a day when it was raining hard
I also looked at the cabling and noticed that 1 cable has a crack
I made a youtube video of it see attachment
https://www.youtube.com/watch?v=6hAr_Mvn8rc
and another url with the error codes
https://m.imgur.com/a/HxIRMEh
thank you for further help
rachid

grandadbobby
Advanced Driver
Posts: 499
Joined: Thu Feb 16, 2017 9:05 pm
Currently Drives:: megan dynamique estate 1.9dci

Re: Megane 2 1.5 dci bad running

Postby grandadbobby » Tue Jun 12, 2018 12:31 pm

Hi,
watched video, engine altered when you touched that loom.
I have delphi autocom, good aren't they.
Just got to find that wire, solder the joints when you fix and use same size wire.
Good luck
Bob.


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