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New COPs and plugs. Still getting a misfire. Wondered if my injectors were bad. I have a 98 non Pi 4.6. Can I use the injectors out of it to put in my 03 PI 4.6 motor? They’re same connector and I know for sure they are good. Is this a good idea or any other advisce to fix the problem. Terrible fuel mileage. Bad miss. Loss of power. And compression test showed appx 150 lbs on each cylinder.
 

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I have had great luck with an injector cleaning and flow test service InjectorRX.com. Once cleaned and tested they are as good as new (but cheaper).
 
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