saturn

1999 SATURN SL1
108,000 MILES • 4 CYL • 2WD • MANUAL
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UHCJEN1
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We have a 1999 saturn SL1. The check engine light came on. We took it to autozone and it showed a p0303 code. We changed the spark plugs and wires, but it did not fix it. It has been running a little rough.

Any suggestions
Jan 15, 2011 at 8:05 PM
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SATURNTECH9
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So is the miss a constant one?
Jan 15, 2011 at 8:22 PM
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UHCJEN1
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Does not seem to be
Jan 15, 2011 at 9:02 PM
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UHCJEN1
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I am going to change my mind and say yes. We just changed fuel injector #3, but that did not make a difference. Still missing.
Jan 15, 2011 at 10:32 PM
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SATURNTECH9
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Let's do this while the engine is idling remove the number 3 spark plug and see if the miss get's worse.If it doesn't then the number 3 isn't running at all.Be careful not to shock yourself.Let me know what you find.
Jan 15, 2011 at 11:16 PM