Idle speed

[Toolster]

Hi Guys

Anyone know if its poss to increase the idle speed? I have a 1.9 Dci and first thing in the morn it runs nice but when at lights it drop to about 750 revs and shakes the car, when warm she revs at 800 and sits there lovley,

So can it be done?

Thanks peeps

[davelowe]

No. Its preset at 850rpm by the ECU.

Check your air filter amongst other things (air in fuel, EGR, fuel filter heater, glow plugs, glow plug regulator.....)

[elvissmoo]

I've had exactly the same problem with my 05 Dynamique. All the heater plugs have been changed in the last year when 'check injection' warning displayed. There are no warning messages, lights or alarms with this problem.

My local unofficial Renault garage can't help. I'm petrified of taking it to the official agent because of the costs and previous unimpressive track record. I'll post again if I discover the answer.

[davelowe]

What cured mine was an oil change and cleaning the crankcase breather system. There is plenty of detail if you search under 'turbo failure?'