Parts For Less in Tuscon shows one that should work. It's from a 1/2 ton Chevy truck, with the 350 and a manual trans. 50 bucks. Phone is 1-800-571-7899
Call them and see what they say.
Being a 94 you should be able to buy an after market chip for it as well, and GM does still sell them but the price isn't nice.
Wednesday, November 12th, 2008 AT 9:49 PM