I tried posting this on toyotanation.com, but apparently nobody has any idea, or they're too ignorant to say anything. They've never really helped me out, anyways, here's the problem..
So, my 97 Tacoma, w/ the 2.7L in it blew a head gasket back in November. Got that fixed, changed both o2 sensors, checked the cat, its good. Exhaust manifold was cracked so I had to get another.
Now, Somehow when I was taking the intake manifold/throttle body off of the engine before I took the head off to change the head gasket, one of the wires came out of the plug for the IAT sensor. I didn't realize that it was this until I got the whole thing back together and started driving it, had to turn up the idle for it to actually idle, then it idled right. it threw a CEL, but it was drivable, but it wasn't the same. It didn't have the same pep and wanna get up and go. Which was Idle Air Temperature Sensor Malfunction.. so I pulled the throttle body off and saw that the wire was out of the plug.
Anyways, I got the plug fixed and hooked it all up. High idle, I think CRAP. But, then I realized that in order to get the temperature up for the o2 sensors and catalytic converter its gonna idle high for a few mins then go back down, but it was never up to 2k, it always idled at about 1500 or so.
But, now when I come to a stop it surges kinda, then stops. But it does this everytime I stop. Anyone have any ideas?
Sry its so long..