ok i have the infamouse hesitation at and after 3800 rpms, i usuall doesnt go farther than 4500 in hesitating. but i put 2 grounds on my car which attached to the body, and the shock mount thingy. i did scrape of the paint for better connection. i still does it, and i was wondering where on my 87 rx7 na where the ecu is really located, the pic in the manual confuses me. and is there a diagram i can look at to find out what are the grounds to check. or if you might think its something else, what.

 

The ECU is located under the passenger's side footwell.

http://www.1300cc.com/howto/how2/safc.htm has a good picture of how to get to the ECU.

-=Russ=-