With the engine idling, pull the spark plug leads off one at a time (if you've got some thick rubber gloves, put them on). If you pull a lead off and there is no change in how the engine runs, then you've identified a cylinder that's in trouble.
what do you reckon then texx ?
i have wired up the fcd 100% right im sure,like i say i have checked it over and over over last 2 days
whys the map sensor now fialed because i wired up the fcd ?
and were do i go from here ?
who sells maps and hw much are they ?
fcd red wire shows 8.97 volts.is this right ?
also bearing in mind this leaves just to wires to get right,thats how i am so sure i have got it right .
the 9 volts was from the ecu by the way.didnt think that was enough voltage but obviously it really didnt matter anyway.