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post #6 of 27 (permalink) Old 26th April 2007
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Originally Posted by chris m View Post
welcome to the forums, let us know the outcome
Sorry for the delay, but the saga has only just been resolved (until my next glitch!). They took 4 days to look and gave it back without really solving the problem. Two journeys (and 30 minutes!) of returning from the garage, same sort of problems occured. Anyway, we were away for 10 days around Easter, had to take our smaller car as we couldn't trust the Laguna. After a second 5 day spell at the garage, they diagnosed and fixed the intercooler (blowing through a hole) and replaced the glowplugs and the Top Dead Centre sensor -now 729 out of pocket for that lot! And to add insult to injury they scratched my newly resprayed bumper whilst "curtesy" washing the car and left a nice oil stain on my drivers car mat... They have offered to rectify this, more later...
And the black smoke / LHM / fuel injection fault came back on day 2, but has since disappeared. For now.

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I used to drive a 52 Laguna II Privilege saloon 2.2dci until I px'd it for a new car and an S-plate Peugeot 306Dturbo
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post #7 of 27 (permalink) Old 2nd May 2007
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throttle Body

Hi all .

This problem is usually nearly always caused by a faulty throttle body of fuel pressure sensor .
Basically the ecu can't cope with the error so it gets confused and throws up the esp fault and ignition fault .
Throttle body can be only fitted by Renault as it is electronic program by renault only unless things have changed .
Fuel sensor or flow switch cost about 200 fitted at an independent garage .

Thanks ide man

Don't know quite if it works but they are offering a free playstation 3 please click link below it somthing to with getting enough clickz .
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post #8 of 27 (permalink) Old 9th July 2007
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So can the fuel pressure sensor be changed at home by yourself ? I've cleaned up the throttle body on my VW after it started to run a lumpy and erratic idle. I've no issues with the idle on the laguna (2.0 ide petrol engine) and it returns a healthy 30-31 mpg , so my suspicion is its the fuel pressure sensor. Can anyone explain where the fuel pressure sensor is located and what's involved in its replacement please. Thanks
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Renault Laguna 2.0 IDE MY 2002
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post #9 of 27 (permalink) Old 10th July 2007
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Ok , here is an update for anyone with a Laguna II IDE (2.0 petrol) that gets the fuel injection fault when in slow moving traffic. I've had this problem on and off for a few months and recently its got a lot worse , so I've just bought a replacement fuel pressure sensor/ regulator unit. For my 2002 car the part no is 7700113483 and cost me 170 with the VAT. Its a simple job to fit taking about 20 mins tops. I've run the car at idle for over an hour with no reoccurence of the fault (before the fault would occur after about 20 mins). Interestingly the new unit has the port in a slightly different position to the removed unit. A set of torx allen keys and a small flat screwdriver to remove the electrical plug and you are in business. There is also very little fuel loss , paper towel stuffed around the sensor is enough to take up the loss. One word of advice ..leave the car to be completely cold before doing the job.. ie overnight. Hopefully this cures the problem. Pic attached of unit (normally hidden under engine cover just behind oil filler)
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Currently in mushroom's garage:
Renault Laguna 2.0 IDE MY 2002

Last edited by mushroom; 10th July 2007 at 07:24 PM. Reason: additions
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post #10 of 27 (permalink) Old 23rd September 2007
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@mushroom, you help me a lot.
i have the same problem, checked on renault clip diagnosis, and see fuel pressure regulator red marked.

they wanna charge me about 400 euros....

Thank you!!!!
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