I think that guy is just a parts guy
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Haha ya I guess your right there lol is there a way of like unplugging the plug on each injector and testing power to see if it's getting right amount I remeber a while back I had issues on my f150 and a guy checked it out he unplugged at th computer then pluged this little light in and would watch it flash to show if it's giving spark plugs right amount of power I guess or if it was giving any at all