my little car is running roughly. mainly during acceleration once at cursing speed say 55mph is fine, just the odd little "cough", however the second you try and accelerate it isn’t happy and loses power, the only way to keep or regain the speed is to VERY slowly accelerate, if you floor it the engine warning light flashes and goes off when you come off the pedal. I connected my Maxiscan MS509 to the car today =, no major codes but a pending code of “P0302 Cylinder 2 Misfire Detected” From my knowledge, this could be as simple as a plug/Lead failing (I don’t know when the plugs where last done in this car (if at all). But could this be the Coil pack as well? The car has recently shown “Catalyst Bank 1 below threshold” which I am confused about – is this the CAT or one of the Sensors? Both sensors (1 and 2) are showing good quick variations on the scanner. The car is 16 years old, and done 90,000 its not stalling (yet). I have got my wife to go get me a plug but just in case does anyone have any advice?

My little car is running roughly. Mainly during acceleration once at cruising speed say 55mph is fine, just the odd little "cough". The second you try and accelerate it isn’t happy and loses power. The only way to keep or regain the speed is to VERY slowly accelerate. If you floor it the engine warning light flashes and goes off when you come off the pedal.

I connected my Maxiscan MS509 to the car today =, no major codes but a pending code of “P0302 Cylinder 2 Misfire Detected”. From my knowledge, this could be as simple as a plug/Lead failing (I don’t know when the plugs where last done in this car (if at all). 

But could this be the Coil pack as well?

The car has recently shown “Catalyst Bank 1 below threshold” which I am confused about – is this the CAT or one of the Sensors? Both sensors (1 and 2) are showing good quick variations on the scanner. The car is 16 years old, and done 90,000 its not stalling (yet).

I have got my wife to go get me a plug but just in case does anyone have any advice?