Sluggish Acceleration

Hey guys. I've been noticing that recently, my 91 T-bird (Your basic 3.8, no chargers) has been slowing down. I'm talking off the line acceleration, it runs fine on the highway. I tried running fuel system cleaner in it, cleaning the air filter (K&N), changing the MAF sensor, but to no avail. Anyone have a clue?

when was the last time you tuned your bird up? i would start by replacing the pcv and egr valves and checking them for vacuum leaks.

I replaced the pcv valve with no effect. The EGR is getting replaced tomorrow, so I'll let you know how that goes.

Replaced both with no effect. Anything else I could try? Also I had another problem. The idle on this car is very high, and it cant be adjusted any further out. The thing will drive at a good 15-20 mph without me even touching the gas. Also, there are no vacuum leaks.

your idle problem sounds like the throttle position sensor. your throttle position sensor may be the culprit for both your problems.

also you may want to clean the throttle assembly with some throttle body cleaner.

Yea, I thought before it was the throttle sensor, but when I replaced it, it didn't help much.