Oil leak advice red plug

just looking for advise as to what will cause the pipe from intercooler to egr to bulge and have too much oil running out when I took it off. I also have oil in the red plug, the injector harness was done about 9 months ago but its a daily, also are the core plugs a big job to do iv got starting problems due to a oily starter wire popping off everytime I start it thanks

1. if the pipe is soft means it's delaminated so you need a new one
2. if that pipe is too oily there is excessive cranckase gas or the depression control valve is stuck open, only way to rule it out is to replace it with new but remove the oil filler cap at idle and see what happens
3. if the injetor harness was aftermarket 9 months is good enough, i've seen cheap ones leaking after 3 months, genuine is the only reliable
4. if you mean the starter solenoid wire tighten the connector or replace it with a new one cos they used to get soft but the core plugs have nothing to do if it's oily cos they are for coolant, i have no ideea what kind of a job it is.

If the FPR leaks it will cover the starter in an oily dirty mess, check it.