eta motor running rough, but not rich

[MJCRO]

The motor has been running fine and started up no problem these last few months since I bought. I recently cleaned my ICV with some carb cleaner after it would not start b/c of the valve was sticking. After I did that, motor was running fine the last few days but now I have another problem. Everything starts up fine, it just runs rough but not rich with fuel.

Could the fuel pressure regulator be the cause? I ordered new Bosch spark plugs so I'll check tomorrow if the it may be the plugs are not sparking.

[jlevie]

If the engine is rough when cold, start with:

Valve adjustment
Smoke test
Ignition wires, plugs, distributor cap, and rotor.

If rough when hot, add a new new O2 sensor to the above list.

[MJCRO]

If the engine is rough when cold, start with:

Valve adjustment
Smoke test
Ignition wires, plugs, distributor cap, and rotor.

If rough when hot, add a new new O2 sensor to the above list.

Yup, some those I just a few weeks ago:

- All new fuel, coolant, and air hoses.
- Valve adjustment
- New O2 sensor
- New plugs
- Ignition wires are old (I'll check these.)

I'll try the smoke test right now.

You think it might be the ECU or idle relay?

[MJCRO]

Yeah just confirmed, no vacuum leaks. Any suggestions?