Nope. No security light. Now I'm getting p0101. I dropped it off at the dealer again cause it's stalling and running bad again. Black smoke came out while starting it tonight. It is a 1999 Z34 with the 3800 in it. Looks just like the one in your sig except there's no sunroof and there is a spoiler. It's black though. Great looking car.
I hope they can come up with something.

 

Okay,
The dealer called and said that I needed a new MAF sensor. I told them that I already replaced it twice so far and the said that I must have got it at Autozone. Yep.
I took the MAF back to Autozone and they replaced it for free again. The car runs great now. Knock on wood.
The dealership wanted to charge 425 bucks to replace it for me. $355 for the MAF and $70 for labor. Needless to say, I didn't want them to change it for me.
So,
I think there was a combo of O2 sensor and MAF that was making the car stall out.
Oil change to come.

 

Changed the oil today. It came out really black so I think the seafoam did its job.
The oil change before last, I had to use some Lucas oil heavy duty to stop some tappet chatter.
So far, I haven't had to use the Lucas oil yet. Maybe Seafoam did the trick.