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Rb25/30Det Ecu Map Sensor/boost Gauge Lines Getting Oil In Them?

HR31-PASSAGE
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HR31-PASSAGE Veteran

HR31-PASSAGE

Posted
Posted

Ok guys i'm having an issue with my rb25/30 ecu map sensor & boost gauge lines are getting oil in them from the plenum. i'm not to sure if its blow by or my oil catch can putting oil through the intercooler piping, i have the catch can drained back to the sump & a line from the top on the can pluming into the turbo air intake (to prevent head pressure build up)

I have one of them mower fuel filters on the lines but oil is still getting through that! now is there another filter that will absorb the oil rather then letting it through the filter?

any help will be great

cheers

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Take the line off the intake and put it in a container and see how much oil it collects.

If it is filling with oil you need a better baffled catch can and /or a proper air/oil separator (not a mower fuel filter) either a Nismo item or a properly fabricated one.

If you are worried about excessive blow by get a leak down test.

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