Hi all, wondered if anyone had any experience with this engine its a 51 plate. Eml been on for while now with no real probs, went 4 miles to work was fine, went home for lunch was fine drove back and its running on 3 cylinders. Does this every day 3 drives and starts running on 3. Pedal test shows p1555,p0140,p0170,p0134. Searching through forums for hrs on end and no one seems to know what the proper causes are. People saying changed all sorts of sensors, coil packs, ecu at a huge expense and problem still there. Alot mention throttle body clean with the pin hole which blocks. Done that took for spin was all good for 6 drives then missing again. New pedal test p1555,p0140,p0170,p0354. Confused is the word. My mechanics on hol so cant get him to look til end of week. Thanks in advance.