I'm new to working on vehicles. Never done it before last month.
My Bronco is a mint '92 with 50k miles on it. When I got it last month it had some getup to it, but over the last 3 weeks I was really unsatisfied with the acceleration. I had just decided Broncos didn't accelerate. My wife's Honda Odyssey was night and day.
Yesterday my check engine light came on and it died when trying to drive out of the garage. Then it died leaving work. Then at a stop light. Then in a drivethrough. Last night I pulled codes (got them written down right the first try and even used a paperclip
) and I got 122 and 128. I read and read last night on the forums. I didn't have a meter so I tried looking for vacuum leaks in the hoses because of the MAP code. Saw nothing out of the ordinary.
Tonight I hooked up a meter to the back side of the TPS and it was reading .36 idle and 1.0 with the throttle open. Went to autozone and picked up a TPS for $35 and swapped it out in about an hour and half. Also cleaned the throttle body with some throttle body cleaner while I was in there. I put it all back together and took a test drive.
Man this thing can MOVE after all! It is like a new engine. Well with 50k original miles it IS new, but now it feels like it. I'm amazed. No more check engine light either, so I'm guessing it took care of the 128 too. Thanks for the great info guys, I love this place.
As a side note I didn't think to get a new TB gasket and the old one was broken. It is late and I cannot get another before tomorrow. I was going to pick one up tomorrow and put it on in the evening. Hopefully it won't hurt to drive 20 miles without it?