just pulled out the whole emmissions harness on my 90 gxl (one of the pass side), and the ECU. what will i need to re-wire if anything to beable to use all gauges without the ECU and does the suspension (auto adjusting) controlled by the ECU? and will i have to rewire the gauges and stuff?

 

As long as the suspension harness is still in tact, it should work just fine.

As far as gauges go, fish out the temperature sender wire and oil pressure wire out of the harness and keep them with the car. Use the Mazda senders in the V8 and you'll be golden.

 

sweet