Frank Type R Posted July 6, 2018 Report Share Posted July 6, 2018 Hi there just wondering about having oil running down hose from intake manifold on my Type R B18cR running a Storm G4 ecu. What is the purpose of this port and does it matter if there is oil going down the hose? Quote Link to comment Share on other sites More sharing options...
Scott C Posted July 6, 2018 Report Share Posted July 6, 2018 The G4 Storm had an on-board MAP sensor so I presume this is a vacuum hose going to it. Getting dirty oil in there definitely isn't good and could cause the sensor to eventually mis-read or fail. If you can't rectify the source of the oil (could be aggressive cams, worn valve seals, pcv, etc.), you should at least run a small in-line vacuum filter to prevent any more oil from going into the sensor. Something similar to this:https://www.amazon.com/HKS-4599-RA017-Mini-Vacuum-Filter/dp/B000ECLHNI/ref=sr_1_18?s=automotive&ie=UTF8&qid=1530895981&sr=1-18&keywords=mini+vacuum+hose+filter Quote Link to comment Share on other sites More sharing options...
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