Ok, so... Truck continued to run well except for at idle. It seemed to have improved ever so slightly once I fitted the new IAC, but that is likely just wishful thinking on my part. Anyway, I went out to grab a bite to eat last night, and when I left the restaurant, she was idling really rough, as in almost stalling. This was the first time it had been that bad.

But she ran fine as long as it wasn't idling. Got her home and shut her off, and went to bed.

I get up this morning, late for work, and she wont start. She tries to start, but stumbles and sputters and simply will not start.

I get home from work, and figure Ill try her one more time, only this time it doesnt even try to fire. It sounds like shes just spinning the crank, No indicatiojn of the slightest want to fire up. If Had to guess, there was no spark.

So I guess at this point, I am thinking the ecu has totally kicked the bucket. I am still waiting on the replacement I ordered.

It has been a very sad day for me today, as this is the very first time my LS has ever let me down and not started. <img src="/forums/images/graemlins/barf.gif" alt="" />

Do you all agree that it's likely the ecu? I suppose I should be grateful for the week or so I did manage to get out of it once it first exhibited the rough idle.