Quote:
Originally Posted by cmbdiesel
As long as I am only producing 9lbs of boost, I should be able to bypass the overboost protection system entirely?
What is the procedure for getting more boost?
Would adjusting the ALDA for more fuel provide more exhaust, hence more boost?
How would one go about testing the manifold sensor and the solenoid?
I would very much like to have my boost up around 12lbs and have a functional overboost protection system.
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Yes, you can bypass the overboost protection system. But, it's not a good idea over the long term. If you lose the wastegate hose, the system has no control over an overboost condition. Far better to replace the solenoid or thoroughly clean it out.
Yes, getting the boost up to 12 lb. would help your performance. You'll need a detailed procedure for adjusting the wastegate...........I believe I have it at home..........or another member will provide it.
Yes, adjusting the ALDA is always desirable on these vehicles. Make sure you are very careful in turning the adjustment screw and do not force it. If you break the screw, you're toast. You should adjust the screw in 1/2 turn increments.........counter-clockwise........until the vehicle starts to smoke when you mash the pedal from a standing start.
You'll need a source of pressure to test the switch. Some Mityvac's have this capability. When the pressure exceeds 15 psi, the switch should ground to the manifold.
To test the solenoid simply requires that you ground the wire to the pressure switch. The solenoid should close and the horizontal leg that goes to the ALDA should now be vented to atmosphere (via the cap on the top of the valve).