'89 Conquest TSI: Ignition Problems
A buddy of mine has an 89 Chrysler Conquest TSI (Mitsubishi Starion), and it'd been sitting for months. One day it just wouldn't turn on. So, I came over to take a look at it, and found out it's an electrical problem. The ECU isn't getting any power when the switch is "On," and neither is the Ignition Coil. But, there's continuity between the Battery to the Ignition Switch, and from the Ignition Switch to the Ignition Coil. I haven't tested whether the ECU is actually getting power or not, but I suspect the ECU could be bad. I only assume the ECU isn't getting power because the "Dummy Lights," don't come on when the ignition is switched on. All the Fusible links are good, and the ignition switch itself looks like it's in great condition.
By any chance, does anyone here have an Extra ECU that would be compatible with this car. It's an 89, Turbo, Manual, with the 2.6 SOHC motor. I'm not sure how Mitsubishi ECUs work as far as compatibility, but it would really help me if I could test out an extra ECU.
Also, does anyone have any ideas? I realize these cars are very much prone to electrical failure, but I just can't crack this one. I still have a few more ideas I need to test out, but I'm just working on my friend's car in my spare time, so it's not an active project. In the mean time, two heads are better than one.
Originally, I suspected the problem was the ignition switch. Because basically NOTHING happens when you turn the key. No immediate change, no relays click, no lights come on. But the ignition switch is getting power, and it appears to be sending it the right way, as far as I can tell. Unless I missed something. I may advise my friend to replace that anyway, since it's only about $20 online, but I'm almost certain that isn't the problem. I tried to bypass the ignition switch, and jumper the power to simulate the ignition being on the "ON," position, but there was no luck. Like I said, there's continuity between the ignition switch and the ignition coil, but the power gets shorted on the way from the switch to the coil somewhere when the ignition is "ON." Looking through the manual, I can't even tell whether the harness goes directly from the ignition switch to the coil, or if it goes through the ECI, and honestly... I don't know what the hell an ECI is, or where to find it on the car. Help?