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    PO300 Code 1999 Tahoe Misfireing

    Anyone having problems with a 99 tahoe misfireing? OK,, I am frustrated,,, I have replace the Spider fuel injector, Sparks plugs, Spark plug wires, Dist cap and rotor, Oxyen Sensor, the last was a Carnkshaft sensor... and it's still miss fireing... still get a PO 300... I have a 1999 Tahoe 350...

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