Code 9 is a fault with the CYL sensor in distributor and would cause the hiccup. Starting could be affected as well.
Most probably you need to replace the distributor. Check the wiring harness connection. You can test the resistance of the circuits to confirm if the sensor is bad. Usually the sensor coil has detached itself from its seat and is damaged by the rotor.
Wednesday, May 19th, 2021 AT 2:21 PM