i mean a piece of wire
just stick a piece of wire into t1 and e1 so they are joined then turn the key to ignition and your check engine light will flash
oil in the intercooler pipes is not a bad thing... it's just the way the turbo engines work... if it is excessive like pools and pools of oil then you may have a problem but if it's just a little bit here and there i wouldn't worry
you could add a catch can if you like so oil doesn't go into your intercooler any more
is there any oil on the ground under your car?
does your engine leak oil around the valve covers?
the oil in the spark plug hole will be from your valve covers leaking... order from Jay Marks Toyota on supramania.com and get some new gaskets and replace yours
it could be thats where the oil is burning
check your oil level... always make sure it is topped up or very very costly repairs are needed
do a diagnostic and tell us what you get