Ok i am going to try to be more specific here,
I dont really know where to start or what my problem is. I current have a idle/fuel problem. There are 2 sensors on the throttle body. One is on the top (map sensor) and one is on the side. You can unplug both of them. With everything plugged in like its suppose to be, map sensor, iacv, other thing, etc. my car surges at idle. It goes from 1k to 2k like im tapping the gas at idle. I unplugged the sensor on the side of the throttle body and now it idles high. The problem is, when i start my car; the rpms drop down to like 900 and it feels like my car is about to stall.

Im not really sure if the shaking of my car and feeling like its going to stall is beacuse of a bad part or what, but ive been dealing with this for awhile and I would really love some help. Give me what you got guys, i wana get my new civic running like it should be.

Mike

92 Civic Si with a b16a1 in it.

 

O2 sensor? I'm having similar problems.

 

Hmm. 900 is perfect idle. That's what all the manuals state. As for the surging. It could be from a leaky vacuum hose. It also happend to my old motor when the headgasket went. So for the vibrations, I'd check your motor mounts. Even if the engine doesn't look like its shaking around in the bay, it could be like at a certain frequency that can cause the cabin to shake. I'd put my money on that it's mount somewhere.

 

would a feeling of wheel hop while starting moving from a dead stop have something to do with it too?? the moter mounts..

 

how in lords name do you have a "bad" motor mount??

 

The rubber in all the motor mounts and supension bushings deteriorate and break apart over time. There could be a crack or tear in the metal of the mount if you are running crazy HP or have been rough on stuff. Maybe a bolt is loose or missing? There are plenty of ways to have a "bad motor mount".