help needed please, took van for engine service before a planned holiday After an engine service oil, oil filter, air and fuel filters, the van intermittently cut out whilst driving just for a second then all ok again also with a slight lack of power at low revs then engine management light came on once while driving but went out.
Apart from the intermittent cut-outs it drove ok, I took back to garage plugged in to their computer; the mechanic took fuel filter off and away and refitted but no change.
Filled with 67L of diesel on Tuesday the 3rd at Tesco Mereway and within a mile of the van started to miss at around 50mph then developed a low rev missing/ lumpy idle. Went back to garage they couldn’t look at it, so on Wednesday I called AA out, no faults were showing on computer and checked I had not put petrol in the diesel looked in filter and checked receipt
Thursday morning on way to town the red engine management light and the stop light on dash came on every time the van was at idle but goes out immediately when pulling away.
Went back to garage on Thursday eve and they fitted another fuel filter and commented that air bubbles were present in the fuel line between filter and high pressure pump the engine management and stop lights come on almost every time the van is at idle and flash sometimes.
2 weeks in the garage to replace one injector No4 and a bill for £1000.00 picked it up lumpy idle all good now but within 3 miles the intermittent lack of power and split second it loses around 1500 rpm and the red engine management and stop light come on then go out, took it back to garage they diagnose wiring fault on injector 3 then put it down to something they may have done and tell me its fixed pick it up next day and its no different from before

RG, April 2012

OK update on this fault Ranault have had the vehicle for 2 weeks their diognostic is a new wiring loom and 4 new injectors then new fuel pump and tank clean (if there was any contamination) est 3600.00 minimum invoice so i now have the van back home all the fuel has been pumped out new fuel and fuel filter and it now has a lumpy tickover and no power i can get it to 50 if im gentle with the throttle if its driven down hill you wouldnt know theres a fault.
I have removed the injector plastic cover and checked all the connections i have listened to the injectors (old screwdriver in the ear trick) and injector no 1 is realy quiet compared to the other 3 (all sound the same) would that indicate its knackered??

RG, May 2012

thanks for the above the fault wasnt there before the service, it is there on acceleration mostly specialy 1st and second gear. the van wont rev past 4200rpm in any gear, but the garage that fitted the injector just phone on friday to say the samplke of fuel i made them take before i collected the van contains petrol, i filled the van up at tesco the day before the service. then the second fill up a week later from the same garage was when it got realy bad within a mile.I also have the print out of the test which reads.. P0571 break pedal switch signal improbable, P2299 Break pedal/accelorator pedal position signal improbable, P0204 Injector cylinder 4 short cicuit.
P0304 Cylinder 4 missing detection Limit exceeded, P0200 injector short circuit, I have phoned tesco and have to fill in a vehicle damage form from the station where i filled up, they were tank cleaning when i filled up!

RG, April 2012

Hi there iv'e worked on a lot of these vehicles it sounds like a wire from the injectors could be rubbing on the engine causing a short circuit, this will bring the engine light on and cause a miss fire also it will make it cut out. Vibration cause the wiring to rub hence it will be different all the time, it worth moving the wiring while the engines running but be careful of the moving parts. zero seven four zero three two six eight nine nine zero.

David Harvey, April 2012

Was it running perfectly before the service? If not what were the symptoms? Did you use a Renault garage?

ChicksFan, April 2012