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got two questions firstly what is this part????

i dont know if you can work out where in the engine bay this photo is taken, so i will try add info..... if you are facing the car head on, it is on the left hand side of the engine bay and dircetly to the right of the fuse box but lower down on the ledge. it is in rb20det. i hope this hasnt confussed you!

the reason i want to know is this device makes a humming sound if you exalerate and then back of it goes hhhmmmmm....... accelarate then back off.hhhmmmmm...

it is strange the car is a manual but used to be an automatic in japan according to my computer, the nosie only started though once i changed my ecu from the standard which was auto to a manual ecu for remap purposes.? is this an auto feature??? thats my suspect

any help wlecome thankyou :D

post-15643-1137480167.jpg

Edited by EVL032
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https://www.sau.com.au/forums/topic/102187-what-is-this-part-r32-gts-t/
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yeah its the HICAS solenoid. Between the chasis and the engine block?

Sounds odd that it would change noise with engine revs? are you sure the noise is not from somewhere else around there?

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