1984 Cadillac Deville wont stay running

1984 CADILLAC DEVILLE
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ANDREW_SCAMP
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Computer problem
1984 Cadillac Deville Two Wheel Drive Automatic 63,000 miles

hi when i turn over the engine it fires first turn then emediatly shuts off i have no idea whats wrong then every once in awhile it fires up and runs fine then it will suddenly shut off and do the same thing fire once then shut off its realy frustrating can any one give me an idea of what it might be
Jul 2, 2009 at 12:46 PM
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RASMATAZ
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Check the fuel pressure and comeback with the readings we start here
Jul 2, 2009 at 1:00 PM
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ANDREW_SCAMP
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[quote:c235994fde="rasmataz"]Check the fuel pressure and comeback with the readings we start here[/quote:c235994fde]when i purg the fuel line it sprays pretty good about a foot high i put a new computer and a new fuel filter same problem turns over fires once then shuts off
Jul 4, 2009 at 11:09 AM
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RASMATAZ
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Read the fuel pressure with a fuel pressure gauge and give me the readings I need this info before we can continue
Jul 4, 2009 at 11:44 AM
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ANDREW_SCAMP
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[quote:2c09996dd1="rasmataz"]Read the fuel pressure with a fuel pressure gauge and give me the readings I need this info before we can continue[/quote:2c09996dd1]its at between 18 and 20 psi
Jul 4, 2009 at 12:05 PM
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RASMATAZ
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Is this a throttle body or port injection fuel system??
Jul 4, 2009 at 5:04 PM
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ANDREW_SCAMP
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[quote:e94c4a0d0f="rasmataz"]Is this a throttle body or port injection fuel system??[/quote:e94c4a0d0f]throttle body injection
Jul 5, 2009 at 6:43 PM
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RASMATAZ
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The fuel pressure should be 8-14psi you're on the high side 18/20 psi. check the fuel pressure regulator and for a clogged return line-
Jul 6, 2009 at 9:28 AM
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ANDREW_SCAMP
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[quote:f34d1f3b90="rasmataz"]The fuel pressure should be 8-14psi you're on the high side 18/20 psi. check the fuel pressure regulator and for a clogged return line-[/quote:f34d1f3b90]
thanks for all your help i cheked the return line and i checked the presure with a new gauge because the one i had was realy cheap and realy old i got right arond 10 i all so replaced the module in the distributor thinkin that might be it nope realy dont no what else to check i have good spark and i replaced the computer but still it fires once then shuts off could it be the injecters in the throttle body ? whats the simptoms of a bad throttle body injecter?
Jul 6, 2009 at 6:12 PM
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