92 accord starting problem
 

I have a 92 accord with little 4 cyl. About 6 months ago I went to yhe bank and turned it off and took care of business. When I got ready to leave it would not start. Had it towed to friends business to look at later. When I got off work I went to check it out and found it would not start and the d4 light was flashing. I called honda dealership and they told me it was probably the computer. I replaced it with one off of a 94 accord. It would start and run but the d4 light stays lit up and acted like it was taking off in second gear most of the time. about two weeeks ago it would not start on my way to work. I found a computer for 92 accord and put it in. It started one time and then would not start again after that. I read on this forum how to pull the codes and they as follows 1-2-3-7-8-14. I am at a loss as where to go next. How can I clear the codes to see if they will all come back? Thank you

Were those codes from the check engine light or the D4 light flashing?

You can pull the backup/radio fuse in the engine bay fuse box for a minute to clear the codes.

The codes I pulled were from the d4 light flashing. I did not get any from the service engine light.

That is a bunch of codes.

1+2 lockup solenoid valves A and B respectively

3 Throttle position sensor

7+8 Shift solenoid valves A and B respectively

14 Faulty brn/wht wire between D16 terminal and ECU or bad ECU

Looking through the TCU testing procedures, all of these codes have a common ground through A25 and A26 pins of the TCU. Make sure A25 and A26 pins on the TCU have continuity to ground.

The ground A25/A26 use is G101and it is located on the thermostat housing (see attached pic). You may want to remove the bolt, clean the connector with sandpaper, and tighten the connector back down.