ok i have a subaru wrx jdm my95 turbo now i went out in the car 2 days ago and it felt like it was running on 3 cylinders,so got the car home checked the coil packs all ok checked the plugs and the 1 on the passenger side nearest the passenger was the only 1 with issues. it was black and stunk of fuel so i cleaned it up and also changed the coil pack on that 1.she seemed ok for around 2 hours now today went out there the same again also i have been having problems with it not starting right the battery on the car will go dead if left for a day or so..can a duff battery cause these proplems what i mena is drove it last night for 4hours parked up went out this morning and i had to use jump leads to start the car. any advise would be much appriciated kind regards ben

 

dodgy earth lead maybe

 

would it be a percific earth or would i need to go through them all as im working tonight so can take it into the warehouse and check rather than lay out in the snow.the car is running simtek aswell,also i have noticed that the revs are a little low on tick over,

 

mine started doing this on no3 cylinder turned out to be a scorched piston stemming from a faulty coil pack hope its not the case with u bud i was gutted

 

fingers crossed that it wont be that but surely if it was the problem then i wouldnt have to starting issues ect,also i have noticed that the boost has dropped a bit, so trying to find out what could cause it

 

also i have noticed that it is usein more fuel than normal,