I had the engine running for about 30 mins, before I pulled out onto a motorway. The car went mental, it started to judder like mad, the EML light came on and it felt like I was running on square wheels !
I could only get up to 60 and that was tough going as the engine sounded knackered and the car was very jerky. Fuel consumption went down to about 7 - 10 mpg in 4th 3rd and 2nd. 1st gear showed 1mpg for a second or two. Temp gauge which is usually on 90 - 92 held steady on 85 immediateley the EML came on. I nursed it home and plugged in my obd reader which threw up these two codes 0300 & 0302. I erased them and went for a test drive. The car was still a bit juddery but it feels like Ive lost the turbo. If I try to floor it the EML flashes and the car just simply judders, so I wont be doing that again but the fuel consumption figures are back to near normal. After about 2 miles the EML comes back on and the fuel consumption drops again and the juddering is as bad as ever.
Is it worth noting that I always run on 99 RON fuel (V power/Tesco99) but 2 days ago I filled up with Esso 97 RON, would that affect the car ??
Could it be a coil pack ? or a duff plug ? I was thinking of swapping 2 coil packs over and see what happens. Is it worth noting its running a superchips remap which has given me no trouble whatsoever in the two years Ive had the car.
I did have a simlilar thing happen to a Zafira I onced owned, turned out to be the ECU was faulty.
Any ideas anyone ?