They are near the throttle cable. Do they light up fine until you fire it then go out? If so they are near the rocker cover by the throttle cable. Just lock them down onto a spare thread somewhere.
Jumping out of fifth is a sign of low gbox oil and if not sorted pretty sharpish will cost you an arm and a leg. However, i just re-read your question. Yes, it could be your shifter cables.
don't do it. I went back to cat as it pissed me off not being able to speak to anyone with the revs over 2.5k or WOT without shouting. Plus when the engine is back in i might actually be able to hear the charger!
I need a new coilpack desperately, have got my engine out of the car but cracked one of the terminals off the coilpack by accident! I don't want to pay for a new one only to upgrade to these a month or so later! :'( Any update on the progress of these? Joe.