[Ecu Self-diagnostics For 87-95 Pathfinder]

after reading this I went to see if I could do the self diagnostics on my 94 pathfinder because a check engine light has been on for some time now, and when I got the seat/cover off of the ecu there was no "on/daig." switch but a note that said "for self diagnostics there is a remote box for this see service manual. anyone know anything about this?

[92 bogging at start up]

My '95 has just recently started doing this as well, but my check engine light comes on and off every once and a while.