Welcome to the forum. I suspect that your engine does not start and you believe that the ECU is an issue?? Have you removed the ECU from the car? If so, open the ECU up, and see if you have 3 large capacitors that say Rubycon on the side (or post a photo of your ECU). Normally the ECU stops working when those caps have dried up or leaked, and it’s a $5 fix to replace the caps. Post #34 here gives the details of those caps, as well as a source to buy them.
Hi Bex,this is what I have done so far,Checked the Pink/Black wire at the tail (0 Volts).Then the Pink/Black wire under the dash (0 Volts), both while the connectors were plugged in by using a needle stuck in with the wire and putting my red lead on the needle and black lead to clean body then...
If you buy the caps this way, any computer guy can solder them in for you and clean the board, if there hasn’t been too much damage.
Otherwise, there are people on ebay where you send your ECU in, and they do this for you.
This is GREAT advise. First, figure out what the problem is. That might take some time and effort. If it is the ECM you have options -- junk yard, do-it-yourself, rebuild. Either way, keep in touch -- and consider a spare if you want to keep it going long term -- like me!!!!!!!!
DO NOT start replacing things Willy-Nilly assuming they are the problem. Figure out what is the problem FIRST!!!! If it is a BAD ECU, it can shut everything down!