Car wont boost properly with after market ECU..

[Max_With_a_Shovel]

I bought an ashspec ECu upgrade for my car a few months ago. My only other mods are a pop charger and borla cat back. After the installation, the car wouldnt boost beyond 7psi. The car wasnt throwing any codes and i checked the fuse for the boost solenoid and it was fine. I sent the ECU back, thinking that the circuit that controlled the boost solenoid was bad on that particular ECU. With the new ECU, i had the same problem as before. I removed the wire for the boost solenoid from the ecu connector and grounded it out, the car boosted to 14-15 psi just as it should. My question is what would cause this to happen? I would really prefer to not keep the wire grounded out, even if it's not hurting anything.

[NolimitZ32]

Do you have boost jets installed? any codes? Sorry I can suggest more, I've always ran EBC.

[Max_With_a_Shovel]

Boost jets are installed. The car isn't showing any codes.

[NolimitZ32]

Could it be that the stock solenoids have bit the big one?

[Max_With_a_Shovel]

Could it be that the stock solenoids have bit the big one?

I'm not sure, would that throw a code or not? As I said in the op, the car boosts fine with the wire for the solenoid grounded out.

[NolimitZ32]

No clue man all I can do is point you to the FSM. ^ this points to a short issue in the wire or bad connection between solenoid and stock boost controller/ECU.

[Max_With_a_Shovel]

Do you know if keeping the wire grounded out will harm anything? The car runs perfectly fine, af ratio looks good. It just bothers me that I have a wire grounded out, even tho I'm the only one that ever sees it. lol.

[NolimitZ32]

Like I said dude i don't know much about the stock boost control system since I installed a EBC when I did my swap and threw all the stock BC components in the trash.

[marty1mc]

Are you sure your ECU has the ability to control those solenoids?

[Max_With_a_Shovel]

Are you sure your ECU has the ability to control those solenoids?

I paid the core charge for the first ecu, then had my old one reflashed after the first ecu didn't work. I find it hard to believe that both ECUs would malfunction in the same way....