I was just wondering i have a mk3 escort and i put the s2 turbo tank on to it for the swirril pot as i converted it into a zetec. I was wondering if the mk4 escort filler neck would fit straight onto a mk3 escort?, Also the the plug on top of the sender is missing for the guage, but i can only see 1 wire there, is there only the one wire goes into the plug for the sender? Cheers Ben.

 

The filler neck is different on both ends. Even the opening size in the body is different. There should also be multiple wires from the sender.