I have searched and read almost all of the threads on this issue and still have no luck. I was hoping Steve could chime in and help! As stated in the title, the car is an 86 TR single mirror with center locks. I’m having a crank no start issue. It’s getting fuel but no spark. I have checked and jumpered the Tachometric relay and the fuel pumps will kick on but still no start. I also checked the protection relay and it is working fine. I did change out the 3 other relays in the “triangle box” because i pulled and tested them and the 15amp relay was weak and in the wrong spot. I rearranged them and put them in the correct spots and the car started and ran twice. I only tried twice and figured the issue was fixed. A couple days later after the weekend i went to start it again and the problem seems to have come back. The car has a new fuse box installed and all connectors are clean and not burnt. I also tested and swapped the speed and TDC sensors with another 86 TR we have and still no luck. I checked the connectors under the coolant expansion tank and they are clean and tight. I swapped the coils and didnt make a difference. All wires at the back of the starter are solid and tight. I also checked voltage at the y pipe during cranking and was getting around 12v. One thing to note is that sometimes its hard to turn the key and takes some jiggling to get it to turn. once turned the windows and A/C works so I’m thinking that the ignition switch is somewhat OK. Any help will be very much appreciated!