I have a 670 usit, but it's a weird pro-inhection unit. The TPS sensor is different and there is no IAC(I'll just drill and tap a hole for one because the air pocket is there, just no where to mount the IAC). The thing is, on my 670, the TPS bolts are across from each other, which on the stock unit one is higher then the other. I just want to make sure the normal 502's 670 units are across from each other so I can order a TPS sensor from one of those and be done with it.


Brian

 

You have to get the taper of the IAC pintle seat and the depth of that seat (depth to IAC mouning flange) and the shape (so the pintle seals properly) just right to make the IAC counts work properly.

Lots of measuring and a good machine shop are in order,