Today I replaced the valley gasket on 99 ss. I had to remove the ls1 intake in order to do so. After I reassembled it all , the ASR INOP light came on. If I try to press the ASR switch it does nothing. 10 min. later the SES light comes on and I took it AZone and the scanner read PO107 witch says it could be a vacumm leak, map sensor or the MAF sensor. Everything was just fine before I did the repairs. Does anyone have a clue what could be causing the problem.

 

No clue but for a vacuum leak, just probing around, did you make sure you reconnected the Brake Booster Line and have it tight?

 

yes, it was tight.

 

Did you hook the vacuum hose back on the map sensor?
Go back over the wiring and make sure that everything is hooked up tight.

 

A wire from the map sensor was not connecting somehow, so I replaced the wire that was not sending the signal and now it works. I think that when I pulled the intake off, that I pulled it out too far before I disconnected the wires and maybe stretched it out or snapped it somewhere in the middle.