Hey guys, I have a 1990 ED civic, it has 145 k on it was honda serviced from new until i bought it.

It has devoloped a bad idle, misses and on low revs almost makes the car bunny hop.
Once moving the car drives great.

I have just replaced the spark plugs, the rocker cover gasket and spark plug gallery gaskets as oil was getting into them.

Also put new leads on and rotor and cap.

The problem is still there.

I have tried spraying carby cleaner into it but no better.

Any ideas guys ?

Thanks