wiring up a 90 TB to 91 engine
 

I just looked through all of Vfaq and couldnt for the life of me locate a diagram or an explaination of how you can wire up a 90 throttle body to a 91-94 engine in a 2g. ANY HELP WOULD BE APPRECIATED.

Re: wiring up a 90 TB to 91 engine
 

You cant! The TPS sensor on the 90 only has 3 wires. The TPS on a 2g has 4.

Re: wiring up a 90 TB to 91 engine
 

Well, TPS on all 1g's have only 3 wires for TPS sensor. 90-94. 90 uses a different sensor with a pigtail. Not only that, but 90 uses a different setup for the ISC motor as well. But, I guess if the wire colors are the same then you could go for it. But, 90's won't work in a 91-94 without some other changes as well. The reason 2g's have 4 wires for their TPS is they integrated the idle stop switch (separate for 1g's) into the sensor.

Wiz