1990 8v

[picky]

Needin help please,After head skim,head gasket,no1 cyl not firin,plug sparks out the cyl,plug is wet,when the plug is in car misses,when i pull the lead off there is no change to the running,Has had new cap/rotorarm,leads and plugs?.also found a yellow wire behind the fusebox what had melted through,it comes of the light switch and goes to a single yellow wire with a spade conecter,do you know what this wire is for?cheers mark.

[jezza16v]

Could still be the plug, swap one over from another cylinder and see if the 'miss' moves to thet one.

[picky]

been told the injector might be faulty as my sump that pertol in it be4 i done the head?cud this be right if so is there any way to check this.cheers.

[rubjonny]

if the cylinder was full of petrol it could be fowling up your new plug. take them all out and leave it for a few hours to let it all evaporate away. clean up the plug tips & try again. worth checking the plug actually sparks as well. pull the fuel pump relay #80 then fit sparky to lead #1, rest it on the engine and crank it over, make sure you get a good spark.

yellow wire sounds like dimdip resistor,look on chassis leg just below the driver side headlight. about size n shape of a pack o polos with a yellow wire out of each end. follow the wiring till you find a 2 pin plug, disconnect it and throw the resistor in the bin.