I believe that is manifold absolute / baro pressure sensor out of range
22 gallons.
According to my Haynes repair manual a code 22 lists a probable cause as : Manifold Absolute / Baro Pressure Sensor out of range
Fortune Dane - 1986 1986-03-22 was released on: USA: 22 March 1986
Double Talk - 1986 1986-09-22 was released on: USA: 22 September 1986
Double Talk - 1986 1986-10-22 was released on: USA: 22 October 1986
The New Hollywood Squares - 1986 1986-09-22 was released on: USA: 22 September 1986
The New Hollywood Squares - 1986 1986-12-22 was released on: USA: 22 December 1986
Capitol - 1982 1986-04-22 was released on: USA: 22 April 1986
July 22, 1986 fell on a Tuesday.
Super Password - 1984 1986-08-22 was released on: USA: 22 August 1986
Super Password - 1984 1986-07-22 was released on: USA: 22 July 1986
Super Password - 1984 1986-09-22 was released on: USA: 22 September 1986