GT Coil Pack (?) Problem
I'm am running a 2005 GT 2.0 JTS. For a while it has been running like a bag of spanners. It started off just in the morning but now is pretty much all of the time. (Although there are short times where it is ok.)
Pulling away the revs drop and it runs like kangaroo petrol in first and second gear. Reverse is unaffected. Once going it does not appear to misfire in 3-5th gears. Ticking over the revs will drop too.
A guy put it on diagnostics for me and it said it was two of the coils packs. These have now been replaced and the problem still exists. However the diagnostic pc says that there is now no error. All parameters are in spec. He also replaced the ngk plugs that were in it with Bosch ones.
Other issues that may help are that I used to regularly get the "motor control system failure" warning but that has stopped. Used to go when going over bumps. I also had a time where I let the oil run down very low :-( Not sure if these could be related.
Any ideas please?