Thread: 1999 7.3 with P1280 & P1670 code
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Old 11-09-2005, 08:34 PM
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Powerstrokedlariat
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Sure sounds like a CPS sensor to me. Your codes mean- P-1280= ICP circuit out of range
P-1670 EF signal not detected

Start with the CPS, probably fix everything
 
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