Originally Posted by Fabrik8

Are you guys serious? You need an intake air temp sensor no matter if you have an OBD2 or OBD1 setup. It has nothing to do with emissions, it's a very important sensor and is the other half of the way air density is calculated (the MAP sensor is the first half). Your engine won't run correctly without an accurate air temp reading, so plugging one in to get rid of a CEL is kinda stupid. Just giving the ECU a temp (different than the actual intake air temp) doesn't do anything except fool the ECU. Don't be lazy.