Tach is reading low. Idle is reading ~600, where is it's usually 800. When I'm on the throttle and it's reading ~1,500 it really should be closer to 2,500. When it would be normally around 3,000 it kicks up for a second to 3,000 and then drops right back down. I got a code scanner from my girlfriend's Dad to check it out, but it's only for 1996+ vehicles. I called AutoZone and the guy told me he couldn't do my car - Me: "Do you have code scanners I could use there?" AZ: "Yea we do it right here for you in the parking lot. Is it OBDII?" Me: "I really don't know, I've never used one. It's a '93 Mustang." AZ: "Oh a '93 Ford, we can't do that. Sorry." Me: "****. Thanks anyways." AZ: Laughs, "Have a nice day." I read through some old posts saying it sounded like the ICM, sound right?