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Re: Miss on 1 3 & 5 cylinders
Posted to Technical Discussion Forum on 3/14/2007

Gene,

The P1340 code is in direct relation to the GM/Delphi Ion Sensing Module, if it's not firing on 1, 3 and 5 or firing at the wrong time, then the plugs which act as sensors for the Ion Sensing Module are evidently not working correctly either, thus resu... Login to read more.