HELP! I'm only getting 2 psi of boost
Originally Posted by Nismo350ZRT
I checked all the couplers and they're all connected and tight so no obvious leaks. I visually inspected the wastegate actuators and they look fine. I pulled on the actuator arms and they're tight so the springs aren't broken. I checked the blow off valve and the valve is shut tight so no leak there. I'm not sure what else to check at this point. 
Did you triple check the boost solenoid wiring??? If you had a leak somewhere, I am sure you would have a rough idle or other symptom(s). what does your vacuum look like at idle?
Triple check the boost solenoid wiring
friend just had the same exact problem, he actually tore a little slit in a coupling for the intercooler, you might need to pull them off and inspect them, he would only build 5 psi on his S13....
Problem solved! 
The cheapo GM boost solenoid was stuck open. 
Now I need to decide whether I replace the solenoid with the same part or get an electronic boost controller.
Does anybody know the solenoid part number?
The cheapo GM boost solenoid was stuck open. Now I need to decide whether I replace the solenoid with the same part or get an electronic boost controller. Does anybody know the solenoid part number?
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Originally Posted by Nismo350ZRT
Problem solved! The cheapo GM boost solenoid was stuck open. Now I need to decide whether I replace the solenoid with the same part or get an electronic boost controller.
Does anybody know the solenoid part number?
The cheapo GM boost solenoid was stuck open. Now I need to decide whether I replace the solenoid with the same part or get an electronic boost controller. Does anybody know the solenoid part number?
-E
Originally Posted by -EL
Glad you got that fixed, but I never would have guessed it was the boost solenoid. Hard to imagine that with APS test pipes and HKS dual exhaust you still had enough back-pressure to hold you down to 2PSI! Unless your wastegate springs are really light. Ah well, have fun boosting!
-E
-E
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