The problem is that after the engine (1991 Accord 2.2) is fully warm, the
idle jumps up and down. It seems to almost stall, the idle air control
reacts, and the idle shoots up, too high. It again falls down to almost
stalling. This continues to repeat.
So I took the Idle Air Control (IAC) from the intake manifold. The metal
screen was for the larger part blocked with black soot. Cleaned this.
This did not complete solve the problem. I think also the electrical motor
is sticky. Can anyone on the list give me some hints on how to get this
smooth?
How can I remove this motor from the IAC assembly??
Should I spray WD40 at the IAC valve, or will this ruin things?

Thanks, Jan
1991 Accord Aerodeck (=wagon) 2.2i EX