Hi, I have a 1991 Toyota MR2 3sge REV1. I was doing an experiment the other day so I could install a numeric keypad in order to start my car with a code. When I was doing some tests with a multimeter so I could determine which positions of the key were the ones in the ignition switch, my curiosity went ahead and I jumped terminals ST2, IG2, and AM2 briefly. The car almost started, but after that, when I connected again the ignition switch it didn´t. The starter engine works fine, just the sound is not as "good" to hear as before, but engine won´t run. I´ve checked all main fuses, all main relays, fuel pump, diagnose codes
and spark with my workshop manual. On the first second after trying to start, it wants to run but then the start engine seems like it´s out of power, though it´s still running with that unusual noise. Also I´ve opened the ECU to see if I might have blown something inside it but it seems ok. I do have an extra ECU, and my next guess is to try it and see if it runs. Do you guys have any idea of what is going on? Do you think I might have short circuited some of the installation and that´s the problem? Please help me!
Friday, August 10th, 2012 AT 2:06 PM