I was wondering if you guys could help me out. I have a 1990 Integra b18a manual tranny with 120k on it. Ever since I got it, it shook ever so slightly at idle, which has now increased to an earthquake. The steering wheel, dash, and whole car vibrate like its their job. I have checked the motor mounts and they appear fine, and revving the engine with the hood open produces minimal movement, so mounts are not the cause. The idle also dips ever now and then, and makes a little "gurgle" at the exhaust, but I dont know if its related. The water pump may also be broken, but car has never overheated so I also think that is unrelated. I have installed/checked the following things:

-Plugs
-Wires
-Distributor Cap
-Rotor
-Thermostat
-Injectors (Ran cleaner through also)
-02 Sensor relatively new
-Fuel filter (a while ago but also had vibrations then)
-Timing is accurate
-Map sensor good
-IACV working
-No vacuum leaks
-No codes

I believe thats about it. As you can tell thats just about everything and you can probably see why Im so frustrated. Has anyone ever had these symptoms before? Any help would be appreciated. I have a turbo kit waiting ot go one and I dont want my motor to blow up Thanks in advance.

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Anyone please!

 

I didn't see on your list that you cleaned the throttle body and/or readjusted the idle. After that reset the ecu and go from there.

 

theres a little screw on your tb. turn it to the left in 1/4 turn incraments till the idle feels comfortable.