My USDM Evo had a yellow stripe on the power wire. being that yours is JDM with the dual boost solenoid, I've no idea if the wiring is different though

 

i installed it today! finally got it shipped form the states!

i connected the red wire with the yellow stripe and the thin green wire (no black stripe).

when i revved i heard a click so i am hoping i am correct.

please confirm!

another thing, i connected the boost hose to the silver fitting and the wastegate to the black fitting. and lastly the other fitting (one with the clip) i connected to the intake by the MAF. did i do it correct?????

Thanks

 

bump for help

 

yes a rev should make it click

Also i'm not famliar with a GM 3 port that much.

I believe would should have had a filter on it which goes to the intake. The other one should goto the wastegate. The metal one goes to the boost source.

An easy way to check which is which is simply to try to blow air through the metal fitting. Do this while unplugged and the port where the air is coming out of should goto the wastegate.

 

thanks seems like the its working i will try to run some logs tonight and see the outcome.

i should have taken some pics for the JDM guys to follow.

 

ok so i did some logs and i am not getting the boost to taper as it is set in my map!

i am overboosting by a lot.

i connected the red wire and the green wire to the pigtail (with resistor) as described in the 3 port BCS post. i heard it click as will with the X.

i tried changing my WGDC to suit and nothing, i lowered them and the boost profile across the rpm did not change at all.

my take on this is that since the JDM's come with dual boost solenoids, there must be some way of bridging the 2 connections onto the 3 port?

or do i just swap to the other two wires and give it a go??

 

It shouldn't be activated just plugging it in.

I tested out my own solenoid by blowing through it and having a buddy goose the throttle. Goosing the throttle activated the solenoid and i could feel the pressure build up in my mouth along with the clicking.

Switch to the other set of wires and see if it works properly then.

 

Have you logged load error and WGDC correction? It could be adding WGDC to meet target load unless you have error correction currently off. Can you post your boost tables?

 

sure give me a few in work...

 

I also take it the vac hoses are installed correctly? Metal barb port goes to pressure source on compressor housing outlet (black pipe). Port A (other side of bracket) goes to wastegate actuator. Port B (closest to bracket) goes to intake pipe.

 

i apologise for the late response, meeting at work.
yup it is connected correctly here are my boost maps:




i have a feeling its my setup cause everything looks alright...?

 

Your BDEL table looks strange. It should be progressive, not up and down.

The max WGDC you have is probably set to 100% for too long. In 5th gear I can be at 26psi at 2750 RPM. You may want to reel that in a bit.

Most importantly you should probably zero out the -20 and -17.5 cells on your TBEC table. Your system may be adding everything it can before you even get to your boost areas. Also, unless you have changed the max value, the most it can add is 10% above BWGDC anyway.

Start a pull from 4000RPM in 3rd gear and see if you have the same condition.

 

Way too much upward correction, way too much correction either way for a GM 3 port.

Try this.

1. Zero out the Turbo Boost Error Correction table

2. Set WGDC table to 20 all the way down

Try that and see if the boost goes down. If not you have either the vac lines on wrong or a bad electrical connection.

If the boost does go down. Then add WGDC until you meet your desired boost level and curve. Then look at the logged 2byte load and fill in the Boost Desired Engine Load table and Boost Control Load offset (BDEL + BCLO = target load) as applicable. Then start adding back in upward and downward Error Correction.

 

thanks will try tonight, i am at work for the day.

ok so i am gonna zero out all the TBEC Tables, and drop WGDC down to 20 and pull a log later on today. then i will comeback with some feedback.

i honestly did not think the connecting the 3 port to a JDM Evo IX would have caused this much trouble lol. does anyone have a wiring diagram i can look at to identify the primary boost lines so i can connect to the 3 port (just in case)?

BTW do i need to alter the BDEL to get wastegate boost?

Thanks in advance

 

with 0 correction your frequency should follow BWGDC to a tee. The only thing I would change from GST's recommendation is to leave some downward correction in the 12.5+ areas of TBEC