#2isgreen

I dont want to buy the ATS plug because its too expensive. I'm trying to use the oem solenoid but disable it. I didn't start taking photos till i had the copper coil, plug, and casing in the trash can. Here's what I've found, I'm thinking the little plunger type screw can be screwed all the way in and will block the airflow and allow no loss of boost.

Any advise is much appriciated.

BILTIT

Try it and let us know.

sooty

anti-ats-r&d I need to do this, do it, im working on my turbo right now, and cant overlook the option, good timing....

carl48

the solenoid does not work like you think. the stock waste gate diaphragm is set for 20 psi the solenoid is a very fancy boost elbow. the easiest and cheapest is to leave the solenoid on and add spring tension to increase opening to 33 psi. here is a cut and paste of another way and a better understanding to help. disregard the resistor as this was to fool the ecm on a 06. also show a pix of one modified another way. it is in a 1st gen.. if you look at the solenoid there are three ports on it separated by two o rings the hole in the end is manifold pressure. the center is to the waste gate. the waste gate spring is set to 20 psi. now look at the portion that has the threads. you will see four holes. this leads back to the intake. inside the solenoid there is a cup with a spring that when no voltages is applied it covers the 4 hole port setting the waste gate opening at 20 psi. when the ecm calls for more air it sends a modulated 5 volt signal to the solenoid to increase opening to the required pressure up to a limit of 30 psi. this is for emissions. if you have excessive air you produce NOX the ecm keeps the pressure just barely enough for combustion thus the smoke. first cut the plug off of the solenoid and get a 100 to 147 ohm 1 watt resistor and solder it to the wires and plug it back in to fool the ecm into thinking the solenoid is ok. remove the three o rings to prevent damaging them and cut the solenoid into about 7/8 inch above the base that mates to the turbo next cut the square part where the wrench goes deeper to make it easier to tighten up. i cut some more of the outer barrel off for looks but you do not have to. Next remove any parts left in the center tube; you will be able to see all the way through the tube. tap the tube with a 1/8 in. npt. braze the tip of the high pressure tip closed and drill a smaller hole in it to limit the amount of air, make a washer out of thin shim stock to cover the 4 ports. next screw a needle valve in where the plug would have gone. take the rubber washer out of the valve and use a piece of copper wire in its place, you do not need a seal, this is only for resistance on the needle

#2isgreen

I think this will do the trick!

carl48

should work good. how are you going to control the waste gate, most run a hose back to the intake and add spring tension to stock to increase opening to 33 psi

#2isgreen

I made an adjustable spring gate. My own version of what BILTIT made for his rig.