Any renault people out there, got a renault scenic the battery died so a replacement was fitted and now it has a miss fire + engine management lights on

Its on a x reg no trip computer, getting a pulse from fuel injectors and coils are being pulsed, pull off 1 or 4 it dies 3 un 4 only makes a tiny difference running ok till battery died give me a 38 ton truck or a loading shovel to work on no probs but this new stuff poooooo

Sounds like it could be a coil pack failed? that would put the engine management light on Can't remember if Renault use a seperate coil pack for no's 1&4 and 2&3 if they do change them over and see what happens.

Put two news ones in tonight plus changed plugs they looked fine but changed them any way

Compression test ?

thought about it but cant see why was running fine only done 43k drove home turned her off flat battery next day charged it off car drop test bol*oxed replace it cant understand it

Has the battery died again since?

And does it flash when re-connecting the terminals as if something is shorting or has failed to cause the battery to go flat in the 1st place.

I had an exhaust replaced and they snapped the clips holding the wireing loom, alternator wires slumped onto the exhaust and it was doing some really strange things like dropping onto 2 cylineders, radio going off, lights dimming, battery myestriously flat etc while it proceded to burn its way through!

Lucky I found it as an unfused wires proceded to short to earth!

Na loads of life in battery every thing else seems to be ok, pile of poo back in me omega v6 now yea ha thinking of selling scenic now if i can sort it

i would of said it was a coil if you have those seperate coils (4) there crap.
they are £38.00 a peice .

i work at wilsons (renault) epsom

If the spark plugs are deep in the head make sure the leads snap onto the top of the plug.

Maybe even take a plug out and plug it into the lead just to make sure theres a good connection and that the lead hasn't gone slack.

As sometimes they connect but not very well giving a weak spark and hence a slight misfire.

ive kicked in too touch till weekend wanted to get kit on wheels so less time for that now

Cheers for all sugestions turns out i had been sold a faulty coil pack so its all running on 4 and up for sale, To the mrs discust