Well i hope someone can help me! I have a 99 dodge intrepid 2.7l v6. I changed out the plugs the other day. Here is what is going on. It stalls and sputters sometimes. here are the codes it is throwing. p1684, p1391, p0356
I have replaced the iac (idle air control) and the #6 cylinder coil pack. it still does the same thing. I have replaced the tps (throttle position sensor) and spark plugs previously. Connections appear to be good.
please post any ideas or things to check.
TY in advance

 

well I changed the camshaft sensor and it cleared up the problem. car seems to be running fine again!