A month ago I replaced a distributor housing on my son's 95 LX.
When I removed the distributor I found out that ALL wires insulation was cracked. Circuit for TPS was dead. Since we do not plan to keep this car for a long time we decided to buy a rebuilt unit. $165 + free shipping from Kragen.
In case you decide to rebuild your distributor on your own here is a link:
http://honda.lioness.googlepages.com/distributorbearing
Beware of rockauto's database. Their listing is incorrect. They sent me a wrong one, and held me responsible for shipping.
Distributor housing for F22B1 engine was listed as a distributor housing for F22B2.
Good luck,
Sam