I have a 1.4 petrol. 62k on the clock.
About 4 months ago this car developed a very occasional misfire under load where the revs were on about 1800. Once the revs got higher the engine was perfect. I have lived with it since then as it only happened under predictable conditions - so sometimes I would knock it a gear lower and get higher revs to avoid the misfire.
What has happened lately though is that the car misfires all the time when I am pulling away at lower revs (this only happens once the engine is warm). Once the revs get higher the car is fine. I can drive for hours on a motorway with no problem - but the minute I then have to pull away from a junction it splutters under acceleration and then pirks up and drives fine - until you then have to pull away at another junction!
When the car is cold the misfire does not happen - only once it warms up.
I have tonight connected MultiECUscan and the only two codes present were P0300: Random/Mutiple Cylinders Misfire Detected
P0302: Cylinder 2 Misfire Detected
What should I be looking to fix/replace? I have had this car since it only had 11k on the clock and have serviced it myself regularly. It cannot be the spark plugs surely as the car runs so well at higher revs???
Does a 1.4 16valve have a coil pack which from what I have read is a common failing on its sibling - the MkII Punto?
About 4 months ago this car developed a very occasional misfire under load where the revs were on about 1800. Once the revs got higher the engine was perfect. I have lived with it since then as it only happened under predictable conditions - so sometimes I would knock it a gear lower and get higher revs to avoid the misfire.
What has happened lately though is that the car misfires all the time when I am pulling away at lower revs (this only happens once the engine is warm). Once the revs get higher the car is fine. I can drive for hours on a motorway with no problem - but the minute I then have to pull away from a junction it splutters under acceleration and then pirks up and drives fine - until you then have to pull away at another junction!
When the car is cold the misfire does not happen - only once it warms up.
I have tonight connected MultiECUscan and the only two codes present were P0300: Random/Mutiple Cylinders Misfire Detected
P0302: Cylinder 2 Misfire Detected
What should I be looking to fix/replace? I have had this car since it only had 11k on the clock and have serviced it myself regularly. It cannot be the spark plugs surely as the car runs so well at higher revs???
Does a 1.4 16valve have a coil pack which from what I have read is a common failing on its sibling - the MkII Punto?