You have to ground the dianostic connector. Basically if you take the 2 screws out on either side of the cigarette lighter and remove the cover you will a long connector type thing with two rows of socketts. On one side (lower left in this picture) use a paper clip to connect the "A" and "B" socketts together. Then start the engine and shoot your timing. Is that enough info or do you need more?
Dwayne Mohr 84 SC Red 87 GT 5sp Silver (Formerly FieroSoul, member since 2001)
[This message has been edited by 1MohrFiero (edited 12-18-2003).]
Posts: 2304 From: Land of 10,000 Idiots Registered: Apr 2003
Well that depends. I assume that you have a non-coil pack 2.5L. If you do, then yes, 1MohrFiero is right. If you have an 87-88 with DIS, then you cannot set it, it is completly controled by the computer.