FSM sez for p1300-Igniter Circuit Malfunction
possible issues:
1) Ignition system
2) Open or short in IGF and IGT circuits from igniter to ECM (check connections)
3) Igniter
4) Ignition coil
5) ECM.
In that order of diagnosis-starts on pg 308. Lots to check-igniter sits under rt side of hood behind airfilter box. I suggest you follow the FSM procedures, you've already done #1&4, so move on to 2/3/5. Luck!
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2001 Limited 4WD - 346+K - SunfireRed\Thunder Cloud; - 265/75/16 Michelin A/T2s - Fat Pat's 1.5" BL - StopTech ANGLED rotors - In series 699 trans cooler, New Yota1 transmission, All new OEM suspension front to rear.