More info as requested.
P0115 has one of three sources:
2-bad engine coolant temp sensor
3-short in engine coolant temp circuit.
With that is another nail in the coffin for the ECM, maybe the source of this is in the ECT causing a rich condition and the misfires? May not explain the igniters though.
IF this was p115, then ignore the top.
I'll sending charts for troubleshooting the igniters. In the meantime verify the p115 or p0115
Wednesday, May 7th, 2008 AT 7:54 AM