2002 Ford fiesta 1.6 duratec misfire

[japn]

Hi there I have a regular missfire which brigs up P-code for cylinder 4 missfire so replaced plugs leads & coil together but missfire still aparent, what other things may cause this miss, apart from injector,

Can a egr fault cause a miss on specific cylinder, also can here a air rushing sound looked for airleak but cannot find ar these plastic intakes a little noisy anyway.

please advise:celticparty:

[smirnoff_rules]

and u have changed the plugs ?

http://www.digital-kaos.co.uk/forums/f68/04-fiesta-1-6-16v-misfire-123344/

[cactikid]

any dodgy air pipes?under manifold on some engines it a 3 piece t pipe always goes,other engine think has 1 under coil pack

[japn]

Hi smirnoff yes sorry I did change the plugs also,

cactikid, hi I knew about the air-pipe under the coil pack on some engines but that is not on this one. but will look out for a t-piece under manifold. cheers