I am helping afriend with tuning up ger galant. the spark plug wiresend(that goes into the ehad) the end peice(the rubber fastener that goes around the bottom of the spark plug) disconnected from the wire and is just chillin with the spark plug. anyone ever have this problem and/or have a solution>?

 

Sounds like the plug wires came apart, replace them and plugsand you'll be ok.

 

that's guys, btw, does anyone have a clue on how to find out which o2 sensor went out (the cel code says o2 sensor is out, so I will clean or replace it, but there is 1 before the cat and 1 after, how do I know which one)? thanx

 

Whats the code and I can find out.