I know a man who canOriginally posted by mind in gutter:
[qb]my friend says i should clean out the automatic idle control. can anybody tell me how to do that?[/qb][/b]
It shows how to do it on a later model with Trionic, but chances are your valve is even more accessible (on top of the inlet manifold) and will require almost no dismantling to take it off for cleaning.
The second problem sounds like ignition. The fuel cut is extremely harsh and feels more like you've hit something than like you're slamming on the brakes. Does your car have Direct Ignition (no distributor or plug leads)? If so, it's likely the DI cartridge has failed. It's worth changing the plugs first, though. When were they last changed? Are they set at the correct gap (1.0mm)? Are they the correct type (DI will only work with the specified NGK plug, believe it or not).