OhNineGT Posted June 25, 2015 Share Posted June 25, 2015 So I found that this line is missing from my turbo. I couldn't figure out where it is supposed to come from so I capped it off to get home. Anyone know where the hose is supposed to come from? Link to comment Share on other sites More sharing options...
MTBwrench Posted June 25, 2015 Share Posted June 25, 2015 That's the wastegate actuator line. One end connects to the compressor side of the turbo, and the other is connected to the wastegate actuator (seen in picture). The tee that you capped off is supposed to connect to a line that runs to the boost control solenoid (BCS) bolted to the front of the manifold. Basically, the job of the BCS is to bleed off the pressure created from the turbine side, to control how much the wastegate opens up, this then controls how much boost the turbo produces. With it disconnected like that, you're only going to make what's known as "wastegate pressure", which is usually around 8psi. Just peak around that general area and under the intake for a small rubber line that's not connected to anything, and re-secure it on that tee with a zip tie! MTBwrench's Stage 3 5EAT #racewagon 266awhp/255awtq @17.5psi, Tuned By Graham of Boosted Performance Everyone knows what I taste like. Link to comment Share on other sites More sharing options...
Max Capacity Posted June 25, 2015 Share Posted June 25, 2015 http://people.csail.mit.edu/ilh/vacation/ In the back of the service manual there are flow charts one show where that line goes. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
OhNineGT Posted June 26, 2015 Author Share Posted June 26, 2015 Found it. Looks like he had just found a screw to plug up the line since he didn't know where it was supposed to go... Link to comment Share on other sites More sharing options...
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