Renault Scenic mk2 1.9 dci 55 plate - injection fault red stop light on

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Sat 7 Jan 2017 07:56
Renault Scenic mk2 1.9 dci 55 plate - injection fault red stop light on - roger summerfield

Whilst driving engine cut out with injection fault and red stop light on dash. Unable to restart. Found that by pumping fuel primer bulb engine started but stopped when priming stopped. Checked forums, many people had same fault. Most popular solution was to change fuel filter. Changed fuel filter, condition same. There is no external inline electrical pump, "lift pump", on this modle car. Researched and found that this function is done by a pump bolted onto the diesel pump, its a finned alluminium block held on by 4 bolts and the suggestion was that the drive shaft had sheared. Removed this block, which is a pump, and sure enough the drive shaft end which locates into a drive slot had broken thus there was no drive to the pump so fuel was not getting to the diesel pump. The main diesel pump thus requires replacement and were I to buy a new pump it would not be economical to do so. Second hand from a scrapper maybe. My question to the forum is:-

I propose to clean out debris from pump and refit pump to diesel pump. Then try to fit an electrical inline fuel pump pre or post the fuel filter to present fuel to diesle pump. Has anybody else done this and if so what pump was used, where fitted etc? There are many on ebay fo £20-£30.

rgds rogersiisl

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Sat 7 Jan 2017 10:44
Renault Scenic mk2 1.9 dci 55 plate - injection fault red stop light on - SLO76
I'd just buy secondhand rather than monkeying around. You'll probably find it'll provide the wrong pressure and when used pumps are peanuts on EBay why bother fiddling around? I am not a mechanic or an auto spark by the way.
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Sat 7 Jan 2017 12:33
Renault Scenic mk2 1.9 dci 55 plate - injection fault red stop light on - roger summerfield

Thanks for your reply. It is obviously an option but right now if an electric pump is viable I could fit in 2 hours say. A scrappers pump will take me all day and may be faulty.

Rgds

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Sat 7 Jan 2017 13:47
Renault Scenic mk2 1.9 dci 55 plate - injection fault red stop light on - elekie&a/c doctor

An in-line or lift pump is not going to get around the problem,as these only supply fuel to the main engine driven pressure pump as a primer system.A s/hand pump will do the job,there is no electrical coding needed.

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Sat 7 Jan 2017 15:03
Renault Scenic mk2 1.9 dci 55 plate - injection fault red stop light on - roger summerfield

An in-line or lift pump is not going to get around the problem,as these only supply fuel to the main engine driven pressure pump as a primer system.A s/hand pump will do the job,there is no electrical coding needed.

Thanks, yes of course it will. Rgds

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Tue 10 Jan 2017 15:40
Renault Scenic mk2 1.9 dci 55 plate - injection fault red stop light on - glowplug

An outboard electric pump is used by people repairing and modifying the 1.5 dCis fitted with the Delphi injection system. With this modification the lift pump rollers are removed to stop them disintegrating and contaminating the whole fuel system.

In your position I'd find out what pressure the pump uses internally in it's low pressure side and buy something that generates around that pressure. It will be a cheap simple thing to try out but you probably would need to power it in such a way that if the engine stalls the pump cuts out.

If you go for a replacement injection pump you'll have the additional cost of the cambelt, tensioner, water pump and crank bolt. Also the cambelt on a Scenic is fiddly due to access. Oh and the locking kit to time the engine correctly.

Edited by glowplug on 10/01/2017 at 15:46

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Tue 10 Jan 2017 22:05
Renault Scenic mk2 1.9 dci 55 plate - injection fault red stop light on - roger summerfield

An outboard electric pump is used by people repairing and modifying the 1.5 dCis fitted with the Delphi injection system. With this modification the lift pump rollers are removed to stop them disintegrating and contaminating the whole fuel system.

In your position I'd find out what pressure the pump uses internally in it's low pressure side and buy something that generates around that pressure. It will be a cheap simple thing to try out but you probably would need to power it in such a way that if the engine stalls the pump cuts out.

If you go for a replacement injection pump you'll have the additional cost of the cambelt, tensioner, water pump and crank bolt. Also the cambelt on a Scenic is fiddly due to access. Oh and the locking kit to time the engine correctly.

  • Many thanks. I bought a cheap pump off eBay. I'll fit it and see what happens. If it works its a bonus. Car will be moveable and I can wait for warmer weather to do a proper repair if needed. I note your concerne wrt stall. Good point. Are the lift rollers the internal parts of the aluminium finned block bolted on the deisel pump which probably seizes and breaks the drive shaft in the first place?
  • Rgds roger
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