I have a 1.2l Vauxhall Corsa D (62 plate) that has done 63K miles. A problem has developed over the last day or two that is becoming a concern, and has got worse over the last 24 hours.
Whilst accelerating in 2nd and 3rd, the car stutters and judders, losing revs and slowing slightly. This goes on for the whole journey. When it happens badly, the malfunction light flashes, and if i ease off the accelerator, it stops, but there is still a slight hesitation in the engine.
About a year ago, the coil pack was changed, the symptoms at the time were similar but nowhere near as bad, and the light never came on.
Any ideas? I've read it could be a faulty lambda sensor, or MAF.