Wire/Part identification

[RugbyMadNut]

Hi All,

I'm going to replace my spark plugs, HT leads and ignition coil at the weekend. This is because I've been getting juddering and misfires at low revs in the lower gears.

I was checking last night that I had the right Torx screwdriver for the ignition coil when I noticed a wire coming from the cylinder head between plugs 2 and 3.

Any idea what this is or what it is connected to? A sensor perhaps?
It's a bit dirty, wet and grotty in the channel the plugs sit in on the cylinder head... this can't be good right? I'll give it a good clean before I remove the plugs first!

Any answer on the unknown wire would be great!

car details = 2002, 1.6 Ghia saloon.

[Sponsor]

[FocusedSlayer]

Hello and welcome to FF,

Is it possible for you to get a picture of your motor and the wire your talking about? Sounds like it might be some type of sensor wire that has came unplugged causing your problems.

[RugbyMadNut]

I'm at work at the moment so I've used a stock image of the 1.6 engine.

The wire in question is marked with the red arrow, between plugs 2 and 3.

[nilskje]

Head temp sensor ie. engine temp sensor

[RugbyMadNut]

Probably not good that it's sitting in a pool of water then!

[sailor]

Probably not!

By the way, over here we have a replacement "pigtail" connector to the coil avail. from Ford, since bad wires/loose connections there can cause issues like you describe.

It's a part to look closely at when you're in there doing the work you planned....

Luck!