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Renault megane Engine management light

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from United Kingdom

Joined: 24 Aug 2007
Posts: 6
Location: Cardiff,
United Kingdom

PostPosted: Tue Oct 16, 2007 7:35 am Reply with quote

Can any one help me????
I have bought Renault megane 1.6 2001 with 86K
i have servised it last week and it was working fine. Today morning while driving engine management light came on.
The garage where i have servised the car, had changed just the spark plug rest all things where fine.
Is it the probmle bcoz of improper gap maintain in the spark plug? or used wrong spark plugs
or anything else
Any suggestion please
thank you
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from United Kingdom

Joined: 14 Jun 2006
Posts: 1707
Location: Surrey,
United Kingdom
Thanked: 43 times

PostPosted: Tue Oct 16, 2007 9:10 am Reply with quote

I'd get the car plugged into a diagnostic scanner. It's possibly a loose connection on one of the coilpacks or something though
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from United Kingdom

Joined: 20 Aug 2007
Posts: 90
Location: Bedfordshire,
United Kingdom

PostPosted: Wed Oct 17, 2007 2:12 pm Reply with quote

coil packs are a common failure. Maybe they disturbed it enough to make it fail when they changed the plugs. Ask them if they will put it on their diagnostic computer for free. Is it running OK, or are their other symptoms. Faulty Coil packs usually cause misfires/ power loss.
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from United Kingdom

Joined: 02 Sep 2006
Posts: 426
Location: Cheshire,
United Kingdom
Thanked: 44 times

PostPosted: Mon Oct 22, 2007 7:37 pm Reply with quote

Bet its either coil packs or post cat O2 probe, if its the latter then its more likely to be engine loom corrosion which will be visable as green corrosion at the post CAT O2 sensor 4 pin plug, this corrosion needs sorting, unfortunatly it usualy travels up the wire right into the engine bay.
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