2002 Buick Regal 3 8 Super Charged Engine Dies Out Increase Throttle Starts

2002 BUICK REGAL
95,000 MILES
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3.8 not super charged. Engine dies out as as I increase throttle. Starts and idles fine, very smooth at low idle and up to 2,000 RPM, no rough idle or loss of power under 2,000 RPM. Got a P0306 code so replaced injector in #6 and all plugs and wires. Also replaced the coil and fuel filter. No more code coming up but still acts exactly the same, nothing I did makes a difference. Feels like it's not getting enough fuel, I did not check fuel pressure yet. Any suggestions on next steps would be appreciated, I am out of ideas. Thanks.
Jan 25, 2013 at 12:54 AM
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HMAC300
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check fuel pressure first. Vin I 48-54 psi VinK 53-59 psi if low that cause syour code
Jan 25, 2013 at 3:28 PM
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