Juddery Acceleration

[genericguy]

Sure it's my fault (it's only happened since I replaced the spark plugs) but I'm getting a juddering feel when I acelerate.
It's not as bad at higher revs, and I've tried reinserting the old plugs without success.
Any ideas?

[neil_bolton]

HT Leads?

It's worth changing the temp sensor (the green one behind and underneath the coilpack) especially if it's causing the car to stall and overfuel once hot.

Changed my whole car once I replaced it.

[Oldandslow]

Sounds like classic HT lead problem. Maybe when you changed the plugs one of the leads got damaged. They do need replaced occasionally so they may have been on the way out anyway.

[Odie]

For a Start push the HT leads down as hard as you can onto the plugs to make sure they are pushed in correctly. And then check the coil pack end.

I had a similar problem years ago after my car had been in the garage for a service, one of the leads hadnt been engaged properly and it started to corrode, had to put a new set of leads on.

So you might need a new set of leads, also were the plugs correctly gaped before you put them in, (did you drop any of the plugs etc?)

I usually change plugs and leads together. Probably no need too but might aswell while im there.

[genericguy]

Thanks for the help.
It was the HT leads, I'd pushed them right down but must have damaged them when I first took them off. Put a new set on and it's working fine.
Thanks again for the advice.