Quick Links

3 port boost control solenoid
3 port boost control solenoid
3 port boost control solenoid

Electronic Boost Control (EBC) Solenoid Kit




This electronic boost control solenoid can be used with the MS3-Pro/MSPNP2 or with other electronic boost controllers to control boost by adjusting the pressure to a turbo wastegate. The MS3-Pro, MS3-Pro Plug and Play, & MSPNP2 can drive this directly. It operates on a frequency of 19.5-40 Hz and is practically a wire-in replacement for the now-discontinued GM EBC Solenoid. It usually needs a slightly lower duty cycle than the GM valve; if you’re replacing a GM valve, we recommend cutting back your duty cycles by 30% and then carefully testing and adjusting as needed. This kit includes 1/8″ barb fittings and mounting hardware.

Maximum pressure is 125 psi, so this can be used even on wild high pressure compound turbo setups.

Note: This valve is a perfect match for use with our MS3Pro ECU as well as the MegaSquirtPNP plug and play engine management systems.

Boost solenoid vacuum lines
Vacuum diagrams for current model boost control solenoid.

Do not plug the disconnected port. Leave it vented to the atmosphere.

The above diagram shows the way the solenoid is plumbed up for both 1-port wastegates (such as most internal designs) and for 2-port wastegates (such as the ones made by Tial). Both plumbing methods are set up so that energizing the solenoid will increase boost. This is a fail-safe so that if the valve loses power, boost will drop to its minimum set pressure.

One wire connects to a 12 volt source, the other to the Megasquirt, the valve wiring is not polarized so it does not matter which wire you run to 12v+ and which to switched ground at the EMS.  It is NOT recommended to mount the valve in a direct, extreme heat source so, if you can, mount it off to the side of your engine bay keeping maximum valve temps at or under 122*F.

The wastegate ports are 1/8″ NPT pipe thread if you wish to use alternate connections.

See this diagram for the previous version of the solenoid included with our kits.

Customer reviews


There are no reviews yet.

Be the first to review “Electronic Boost Control (EBC) Solenoid Kit”

I see 3 ports, but you only include 2 fittings.  Why?

  • The 3rd port is the “bleed” port and is open to atmosphere.

I’d like to use different fittings for my lines.  What size are the ports?

  • The ports are threaded for 1/8″ NPT.

I sometimes hear the solenoid clicking.  Is this normal?

  • Yes.  The solenoid has a high speed valve inside that is rapidly pulsed by the ECU.  You may on occasion hear the valve being cycled.  This is perfectly normal.  It’s not all that loud  so it’s likely you’ll never hear it, particularly with the engine running. Most current firmware versions do not cycle the solenoid with the engine off.

Can this be used with a supercharger to control boost?

  • No. It is intended to regulate pressure to a turbo wastegate. Superchargers generally do not have any equivalent means of boost control.

Questions & Answers

There are no questions yet, be the first to ask something for this product.

Send me a notification for each new answer.