Hey man! Had the same thing... Its gotta be the high pitch whistle. You probably got the hose connected to the wrong place... Dont mess with the bolt unless you know what your doing...
Click Here for Install instructions
Even though I got a different engine... You should look for the same characteristics on the SR
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Got the 1.8L Love
1990 240sx fastback: CA18DET-Walbro Fuel Pump, VLSD, Silvia 2.5" Exhaust, ACT Stage 2- 6 puck Clutch, KYB GR2, Intrax spring and HKS SSQV
Still to Come: FMIC (Iodized Black), S15 T28, Stainless steel Manifold, PS lines, HKS Hi Power, Brake Upgrade(Z32/180sx), and Suspension
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