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Help With A Cold Start Issue

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Old Nov 5, 2007 | 01:38 PM
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Don O.'s Avatar
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Default Help With A Cold Start Issue

2003 ZO6, This problem just started. When cold I have to re-crank the car two or three times before it will begin to start and when it starts it takes about 30 seconds to clear out and run smooth. It never did this before and just started one day unannounced. BTW, fuel pressure is about 55# when you turn the key on before I crank it and is about 60# when reved. Car always stays on a battery tender when parked so it has full voltage. I also have a Racetronix fuel pump harness installed and the fuse is good.
Starts perfect when it is warmed up and even when it sits all day, just happens on a cold start. No issues with performance or high RPM missses etc.

Thanks for any insite on this.

Don
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Old Nov 5, 2007 | 04:32 PM
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Do you have it tuned? Sounds like the tune needs to be tweaked, I have the oppisite, cold starts fine, but doesnt want to catch idle on warm starts,. just havent had time to take it in .....
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