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Intermittent Injector fault displayed:

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09:04
March 1, 2011


Vel Haggis

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Post edited 09:45 – March 1, 2011 by Vel Haggis


My wife was driving home last night when the info panel showed up "injector fault" at 70mph on the motorway. She limped it off onto back roads and made it home without switching the engine off.

I went out to investigate and confirm 15 mins later and the fault had disappeared.

Brought the car into work today and the fault repeated about 2 miles from home. Pulled off the road. Turned the engine off and restarted and the fault cleared.

Has anyone else seen this?

Also, does the Vel Satis have a characteristic high pitched whistle / whine from the injectors? That noise has been apparent since we bought the car (seems to fade out above 2krpm). When the fault showed up, the whining noise disappearedā€¦

Curiouser and curiouser said Alice!

I have a had a skulk round t'internet this morning and there seems to be talk of a turbo potentiometer issue causing this symptom?

09:52
March 1, 2011


Team

UK

Admin

posts 604

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Hi Neil,

I've never experienced the fuel injection warning myself, but it's quite common on the Vel Satis and other Renaults, going by my years of trawling other Renault forums online, plus speaking with other Renault owners.

It's sometimes to do with a blocked EGR valve, so maybe it just needs cleaning. Sometimes it's a filter that's clogged, or sometimes it's something more serious. It could just be a mystery though, which might rear its head every so often, but not cause any long term issues.

Member 'DMH52 Vel Satis' on this Vel Satis forum experiences the fuel injection warning fault every few weeks in his Vel Satis, which is a 3.0 diesel. Exactly the same happens to him as happened to you i.e. he got the warning, the car went into limp-home mode with a restricted top speed of 50 mph, and he only got out of limp-home mode by turning the engine off and back on again. He tells me that often the fuel injection warning fault appears when he floors the car hard, after it's not been used for a while (cold engine and all that). But sometimes it happens when he's trundling along nicely on a motorway, comes to overtake, them bam, warning comes up again, even though the engine's been running fine for an hour or so.

And yesterday, R9UKE on here reported via Twitter (we're @renaultvelsatis on there – twitter.com/renaultvelsatis) that a relative of his' 3.0 also threw up the fuel injection warning fault for the first time. But apparently his relative was doing considerably fast speeds.

I know it doesn't really help, but 'DMH52 Vel Satis' definitely has this quite often, and his local Renault garage told him they couldn't find a fault in particular, despite plugging in Dialogys and CAN CLIP (the official Renault software and hardware tools via ODBC).

Maybe another owner can throw some light. I wonder if Rosic with his 2.2 has ever had the fuel injection warning light?

Keep us posted. Do you have a garage nearby you can take it to, just in case?

Vel-Satis.org Chief Administrator & Founder

10:24
March 1, 2011


Vel Haggis

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Thanks for the swift reply. Having only had the car 3 days, we have one of these "3 months platinum warranty" things from the dealer (who seemed like a good guy as he fixed a couple of niggly trim faults as part of the deal for the car with no extra cost). I'll call him today and explain the issue. I don't feel like taking it to a Renault dealer to eat up the Ā£500 of warranty on inconclusive diagnostics.

Still not sure if the rear screen demister is working, as this morning was a lot warmer. If the heater matrix is on, should it feel warm to the touch on the outside of the back screen? I presume so, otherwise how does it melt frost!

10:29
March 1, 2011


Team

UK

Admin

posts 604

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Yeah good idea, talk to the person who sold you the car with the warranty first, then go from there. Hopefully it'll just be a fault which happens every so often, but doesn't cause anything major.

I'll try my demister sometime soon and let you know what I observe/feel etc!

Vel-Satis.org Chief Administrator & Founder

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