UK Car Repair: mg zr 105 losing power......., mg zr 105, air intake system

Question
Hi when i drive off on the odd occasion my car judders almost to a stop, seems to lose power as if theres no fuel. I have previously been advised to spray some WD40 into the ''HR'' leads but i can't locate the ''HR'' leads could you please help in locating exactly where they are and if this operation using WD40 would really help?

Answer
I do not think the WD 40 will be of much help and i'm not sure what the HR leads are.( maybe they mean "HT"  -spark plug wires. As it isn't happening all the time it suggests that something has a bad connection or leak.  Start by unplugging all the sensors, looking to see that they're clean then refitting them. Check the air intake system to the manifold, look for a broken/cracked connecting hose.  Good luck