2G Help my 95 Mitsubishi Eclipse ATX won't shift out of second

[Turbochargedmommy]

Please help my 95 Mitsubishi. Eclips is stuck in second gear automatic transmission was driving fine then bam stuck what do i do to diagnose the problem i need it fixed asap

 

[shinzon]

Given your username I assume it's a GST or GSX? Stuck in second gear sounds like the TCU has detected a fault and put the transmission into limp mode. Do you have any trouble codes?

 

[Bud92gsx]

You mean 3rd gear. The tcu is stuck in limp mode meaning 3rd gear is all you have, unless u want to manually shift 1-2-3.
get a good working tcu and ur done, or buy the forced four shift box and have alot of fun shifting. hope this helps