Car 86 Camaro was running fine, ran great.

Started it up and let it idle for a min while I ran back in, came out and it running bad rough all of a sudden. Barley would idle, SES light is flashing like crazy, tach needle is jumping around.

Tried to pull codes but nothing, SES light just comes on once then off and nothing, All you hear is the FP relay and IAC clicking like crazy.

 

Well for starters thats really odd that the SES light does nothing as it should trow atleats one code to say that its working. Sounds like you have some serious electrical grimlins. On the bright side because of the seriousness of the fault it will probaby make itself relitivly obvious. Anyways frist give the car a good look over make sure that a hraness didnt fall onto a header or somethin.