lumpy idle

[clio__chris]

basically on my 1.6 16v clio ever since ive had it (4 months or so) every so often when i start it up it goes and idles at about 1k revs (when cold) but it feels real lumpy? like kinda feels like its bouncing up and down a lil

kinda hard to explain? but does anyone know what i mean?

 

[edde]

Try talking it back to Renault. There are the usual thing which can be a problem throttle bodies, ECU mapping, spark plugs

 

[mechachrome]

or could just be idling like any 16v engine? mine does it and think so do all if not most 16v engines idle like this??

 

[JAY172]

the new generation 16v engines have a slightly uneven idle. any excessive lumpy idle is normally a pencil ing coil or a software problem.

 

[clio__chris]

yeah i dont mean like the revs jump about at all........ just mean it feels like its bopping up and down a bit lol

 

[viceroy]

Sounds normal...both my 1.4 16v and 172 do it

 

[bigtommy]

its cos renaults engines are a bit old bascially, mine does it like a gyppo. renault did reset the ecu once and that made a bit of difference for a while

 

[JAY172]

the engines are designed to favour higher rpm so you get a slightly poorer idle. the newer 16v engines arent very old and they meet production/emission laws well into 2005.

 

[Tom1600]

Yeah dont worry Chris mine does it too.