Its 1999 model Gli. Check engine aur battery ki light should turn on when i turn the ignition on but it doesn't. Yesterday I start the engine and then disconnected the MAP sensor cable but still there was still no check light, which should be there after doing this. Secondly battery to bhai main daily disconnect karta hon otherwise car doesn't start in the morning. One more thing. About a month back ignition on karnay par sari lights on ho jati theen (Oil pressure, Battery, hand brake and check engine). Ab check engine aur battery ki nahe hoti. Aur how he checked the ECU hmmmmm. He just checked a few cables and looked for error codes and draw his conclusion.
Last night i did this. I removed MAP sensor cable and check engine light didn't came up. As far as ECU is concerned, i'll remove it on sunday and send you pics with details.