runs rough 4 to 5 mins shuts off codes p0300 p1514

1999 CHEVROLET CAMARO
165,000 MILES
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KEITHBALDWIN01
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1999 Chevy Camaro 40 psi starts butt shuts off some days runs rough 4 to 5 mins shuts off codes p0300 p1514 I am stuck up the creek with no paddle need help? p0300,misfire in cylinder ,p1514, throttle body sensor ,also 1516, also tbs could it be fuel pump?
Nov 9, 2011 at 1:56 AM
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JACOBANDNICKOLAS
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It could be fuel pressure. Have you checked it?
Nov 9, 2011 at 2:03 AM
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KEITHBALDWIN01
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yes about 40psi when key is on.
Nov 9, 2011 at 2:24 AM
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JACOBANDNICKOLAS
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I looked up the specs. The 3.8L should have between 48 and 55psi. The 5.7L should be between 55 and 60psi. Which engine do you have?
Nov 9, 2011 at 3:23 AM
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KEITHBALDWIN01
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3.8 L v6
Nov 9, 2011 at 5:48 AM
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JACOBANDNICKOLAS
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It should be 48 to 55psi. You are a little low.
Nov 9, 2011 at 6:00 AM
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KEITHBALDWIN01
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yes about 40psi when key is also my service engine soon lights on blinking so put scanner tool and it gave some codes p0300 p1514 first ones a misfire cylinder ,p1514, throttle body sensor ,can a failing fuelpump make the service engine soon light come like that .thank you so much 4 ur help.GOD BLESS YOU ALL
Nov 9, 2011 at 6:48 AM
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KEITHBALDWIN01
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and could it be pressure regultor?
Nov 9, 2011 at 7:07 AM
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JACOBANDNICKOLAS
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Yes, it could be the regulator.
Nov 9, 2011 at 4:06 PM
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KEITHBALDWIN01
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I checked the regulator and it was the problem :-)
Nov 11, 2011 at 7:38 AM
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KEITHBALDWIN01
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Thanks 2Carpros.com you guys are the best!
Nov 11, 2011 at 8:56 AM