Guys,
Ok, I've been slacking on updates and such. No I haven't dissappeared or blown my engine.
I had been having problems making boost. In my on going effort to find the problem, I have fixed a few issues and created a few issues. FYI, don't EVER pinch both PCV lines and drive the car, not even for a short run. You'll regret it if you do.
Anyway, a couple of things I figured out. My EGR vavle was leaking in like 3 different places under pressure. I used a coke can (for now) to make a gasket to block off the ports.
I intalled a PCV valve in the passenger side line that goes from the throttle body to the valve cover.
The sealer on top of my MAF sensor was failing, so I took off the top of it, cleaned it up, and resealed it. The stupid thing was leaking very badly and under pressure, it looked like the top might pop off at any second.
Most of my aged vac lines would either leak or pop off under pressure, I have replaced a few of them and I am still working on replacing the rest. I have been using zip ties on the ends of all lines to help secure them.
Well, after doing all of that, I have been consistently seeing 3psi at around 3500 to 4000 rpm with moderate throttle opening. I haven't pushed it yet cause my tune is still a bit funky.
Over this weekend I plan on replacing the rest of my vac lines. Also, I am finally going to convert to speed density via the MAFTPro. TurboBob over at Full Throttle
http://www.fullthrottletech.com/index.php has been very helpful in making the speed density thing possible for the Lexus **400. The only problem with it now is that the car will stall when the wheel is turned because of the power steering pump vac switch. Currently, the vac line to the MAP sensor is sharing the same intake source as one of the lines for the power steering pump vac switch, I am going to move one or the other to see if it helps. If not, I am confident that TurboBob will be able to fix the issue with some more programing. For now, I will likely just plug the line for the pump switch.
After I get rid of the MAF and replace the rest of my vac lines, I will do an intake leak test to double check everything. Next will be some tuning, then I'll let her rip and see what it will do.
KC