So i was installing a tranny cooler after work on my green car and finished with no problem. Then i decided to change out my 160 thermo to a 180 thermo. So to make the story short i was a dumb *** and got coolant on the non vented opti. So i went to test drive it and my car started to over heat. I turned around and i when i went to accelerate my engine rattled to 2500 rpms. It sounded like it barely misfiring and i lost power. the engine revs up normal when i give it slight gas. But the engine rattles when i rev hard. The car idles fine though. So its my opti right? I guess its time to throw a cam in with the new opti.

 

Sounds like the opti. Is there any codes? Test the opti: http://shbox.com/1/4th_gen_tech2.html#opti_test