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Discussion Starter #1
I have been reading the threads and my problem with lumpy idle and kangarooing at low throttle (when in traffic) is driving me mad.

Coils seems to be the most likely culprit but I don’t know which route to go down first. I don’t hear may people talking about this problem on the 24V engine.

Also I have to open the throttle quite a bit for her to respond. It’s a shame because I really like the car.

The problem seems to be worse once hot.
A garage detected no fault codes when I had the plugs changed.

Any suggestions would be greatly received
 

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You say you've had the plugs changed,was the problem there before this?

The inlet manifold has to be removed to change the rear bank of plugs and it's possible it's not re-sealed properly.

If not,then coils are a definate possibility,but a faulty one will cause general poor running,not just at idle or small throttle openings.

Are any warning lights lit any stage when you drive it?

I'd have a proper ECU live data check done and go from there.
 

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Discussion Starter #4 (Edited)
The problem started before the plugs were changed. It had been a while since they had been changed so I had a Renault specialist change the plugs first. The problem was still there and I left it for a bit but now its getting worse. The car above 2000 rpm is good although it does growl a bit...sound like a V8. There are no warning lights on and the garage could not detect any fault codes.

I don't know wether to take it to a Renault dealer, a specialist or just a recommended garage.

Thanks
Jason
 

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Discussion Starter #6
Sounds fuel related to me, when was the last time you changed the filter?
I feel embarressed about this but I haven't done anything to the car.

Air filter not changed for a while. Don't know about the fuel filter. Which were you referring to?

Thanks
Jason
 

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Fuel filter, but I'd wait until someone seconds me on that, there's far wiser people here than I - I was just curious, don't run out and buy one on my say-so, I'm an engineer, not a mechanic (they're far cleverer), so I approach things logically, not necessarily correctly. :)
 
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