Question about 2003 Renault Sportwagon

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1.5 diesel megane injection fault

Hi just fitted new injectors because had a msg on screen showing 'injection fault' and the renault dealers` diagnostic test shown the injectors were leaking. got that sorted and the msg still comes up on screen when driving. dealer said it is the fuel injection pump. because it is an expensive thing to change, didnt fix that problem. yesterday when drove on a long journey, the engine stopped at about 70 mph and wouldnt start. guy from rac managed to clean the crankshaft sensor and terminals and the car started. although started and i managed to drive another 200 miles i couldnt go more than 50 mph without it showing the fault again. anyone knows if this can be something else than the fuel injection pump? (preferably something cheaper ;P)

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Were is crankshaft sensor

Posted on Dec 07, 2009

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The cheapest way to go is to change the fuel filters first and the air filter. Then I would change the crankshaft sensor.

You may have to bit the bullet , and have the fuel pump changed before the fuel injection pump. The fuel pump in the tank can be loosing pressure to the fuel injectoin pump.
I think the lesser cost is the fuel tank pump vs. the fuel injection pump.

The system runs of fuel and air. No spark like on a gas engine.

So the problem can only be lack of fuel or lack of air getting into the vehicle air induction. A restriction in fuel or air will make the engine run poorly.

Posted on Jul 16, 2009

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My 03 magane ran out of dev and have put 2 gallon in but wont start just keeps turning over. can they be hand pumped or is it electric pump on them. help please

Posted on Mar 18, 2010

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Diesel leak oily residue over back of car and back window also showing injection fault renault megane 04

Posted on Aug 10, 2009

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05 Megane Sport Tourer 103,000 miles
I had the injection fault light coming on when putting foot down to overtake. Chnaged Air filter, Fuel filter, and no difference.
Oil, Filter, cambelt all changed at correct intervals.
I put some injector cleaner in with the petrol and the fault got worse coming on when starting and resulted in six presses of the button to get started.
Ran the car through Xmas and took to renault who put it on the diagnostics and found the Leak Down test failed on two injectors.
N0. 2 and No. 3 cylinders.
One rplacement injector is £186 and fitting both is 1.5 hours labour.
The diagnostics was £47 which I think was fair as pecialised equipent is reqired and it took 1.5 hours.
After 103,000 miles I guess this little 1.5 diesel has don well and the new injectors should give it a new lease of life.
Best point 62mpg. Worst point 3 window regulators on front windows (Under Warranty) one has gone again but the window is up so I can not bring myself to pay £200.

Posted on Jan 07, 2010

  • Newbie1980 Jan 03, 2012

    This is usually a hand pump if you remove the plastic covers on the drivers side there is usually a black pump that you'll need to squeeze until the diesel reaches the engine.

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My magane was sitting in the driveway with no one near and the wipers front came on on their own, now when i start the car the wipers dont come on at all checked all fuses replaced ecu unit still no wipers. help

Posted on Oct 12, 2009

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