First post on the forum. Long time honda civic and accord owner.

Car: 1995 Honda Accord EX Wagon 2.2 vtec.
Issue: Started car up, put in reverse, shifted hard into reverse, shifted into drivve, started driving and D4 Light commenced to blinking every second constantly.
Drove car 2 miles, car felt like it was in wrong gears, parked, shut car off, turned car back on while parked and put in gear D4 light was solid (as in normal operation).

Was able to pull codes from jumping connector 1 long 3 short (assumed to be TCU Code 13 - Main shaft speed pulse generator open or shorted) NO CEL or any other codes.

I cannot find any information on any fixes related to TCU code 13. Please advise.

 

Code 13 is for the BARO sensor and the related wiring between the ECU/TCU.

 

Late Update: ended up replacing ECU and TCU both. Code went away & car drives normal again.