1996 Pontiac Sunfire Starting Issues

1996 PONTIAC SUNFIRE
121,000 MILES • 4 CYL • FWD • AUTOMATIC
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JKOZIE2001
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When the engine is cold, it fires right away but does not start for about 10 seconds or more.
When the engine is hot it wont start at all. I have a new fuel pump and filter, good fuel pressure, good spark and it fires with a small spray of starting fluid(ether). The car runs fine once it does start.
Mar 13, 2010 at 10:03 AM
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JDL
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Hi, what was the actual fuel pressure spec? How long since a tune-up? Any trouble codes?
Mar 13, 2010 at 10:16 AM
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JKOZIE2001
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I dont have numbers as far as the fuel pressure but i know it is not draining or bleeding off after the car shuts off. Actually, i havd an injector o-ring leaking and when i went to repair it, i forgot to bleed down the fuel pressure and it blew the injector right out. I used a code reader and got nothing, no engine lights. I have replaced the plugs and wires about a month ago. I just dont know where to go from here.
It's a 2.2L engine.
Mar 13, 2010 at 10:23 AM
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JDL
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Some of the national brand autostores used to loan out a fuel pressure gage, if you don't have one.
Mar 13, 2010 at 10:35 AM
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JKOZIE2001
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ok, Thanks you. Beyond the fuel pressure, what else should i check for. As i mentioned, it fires when i gave it a small mist of starting fluid but wont fire on its own. Even after trying to start it 5 seconds after i shut it off.
Mar 13, 2010 at 11:13 AM
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JDL
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I'd have to check fuel pressure. Engine cranking, the fuel pump gets battery voltage, maybe 10 volts or less. Engine running, the fuel pump gets generator voltage, maybe 13 1/2 volts or better.
Mar 13, 2010 at 1:55 PM
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