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2003 xtype 3.0 misfire on cold start{ below 50 degrees)es

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Old 11-20-2021, 03:46 PM
Madvmax's Avatar
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Default 2003 xtype 3.0 misfire on cold start{ below 50 degrees)es
Changed plugs, looked for vacuum leaks,changed fuel filter.When warm like a a sensor opens and runs great
Any idea which sensors to replace first?
 
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Old 11-22-2021, 11:46 AM
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I would get a decent code reader plugged in and see what values you have on live data, the first one I would be checking is what engine temp the ECU is seeing as this has a direct effect on fuel delivery depending on engine temp.
 
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