did you check the cat yet

hey there ,changed ecm and promp but did nothing for the problems

the cat - what - the Cat has nothing to do with an Electrical issue. Its something in the wiring

are you having the same problem as me ? Well my car is at the Dealership, it seems even anyones gonna know what the problem is, its gonna be them. I have taken this car to 2 different shops whom are great shops and with great equipment but to no vail, couldn't find why its not fireing. All electrical systems seems to be putting out power. Checked the Elec.Cntrl.Mod. coils, crankshaft sensor, cam sensor, and even the ignition switch. All getting power but no fire. I will see what the Dealership'* verdict will be. So for they have put over 3.5 hours and still need more time in which I was told - for a $89.95 - to now a $275.00 job and still has no clue. These Bonnevilles or should I say GM'* have a lot of electrical problems and it aint fun, when they go hay wire like this. - Costly

someone else suggested that the cat might be plugged.....just thought id pass it along.....exhaust is new on mine.....getting any closer to solving the problem?

also heard of grounds getting rotted down on the floor beside the door..... going to check it out....anyone else heat that?

Not sure where your going with this - but a plug cat, nothing to do with ignition electrical. Its at the dealership (Pontiac) if anyone is going to find the problem on this car, its gonna be them. Not one person on this forum could figure out what it is. I took it to 2 of the best repair shops here in Maryland and both could not figure it out. I will tell you once I pay out of my arsh from the dealership on getting this car fixed.