Did some searching here and on HKS and i couldnt seem to find anything that tells me which vacuum line goes where. As you guys know Im sure Im only getting 12 psi for some reason and want to make sure lines are right. It was in the car when i bought it so i did not do the install but it always worked before.

On the stepper motor there are two 1/4 vacuum line nipples and one 1/8th nipple. The 1/8th vacuum line went to the air intake. Then the two 1/4 nipples one has a I on it and the other a O. Right now I have the I going to the compressor nipple and the O going to the wastegate. Ive tried switching them around also and it didnt change anything at all. Anyone that has any idea of how there's is would be great thanks.

Jeremy

 

1/8" goes to the intake mani (needs both vac and press).. I goes to compressor housing. O goes to the WG.

 

Alright cool thanks very much. just got my stainless steel lines from you this week. installing this coming week.