Have you reset the computers ?

You can do this by either disconnecting the battery terminals or by connecting together pin numbered 7 9 and 13 in the socket just by the computers behind the passenger seat. [be v. careful]

You could try switching over the air intake sensors and see if the error goes to the other side. I think that there are also two TDC sensors, you could try the same here.


On my 91 diablo, whenever a check engine light is thrown, it does not seem to go away when the problem is corrected. The light will only clear when the computers are reset.

Good luck, and please let us know what happens and what you find out.