Trans problem, please help

[turboHLS30]

I have a '93 CB9 automatic and the trans has been acting up. When I shift into D4 the car takes forever to get u to speed. If I start in 1st and go to 2nd nothing happens which means 1st isn't working. When I shift from 2nd to 3rd, it shifts normally. But when I shift from 3rd to 4th nothing happens. So 1st and 4th don't work, and if I'm on the highway at 70mph, the rpms are at 3k-3200. I've switch the TCM out with a new one, and there's fluid in the trans. I'd really like to fix this ASAP because this is my DD. Any help is appreciated

[dhill_cb7]

hey are you getting a blinking d4 light? If so check the codes it is throwing.

[turboHLS30]

Nope, the D4 light stays on no matter what gear I'm in.

[Raf99]

just tryin to help. I googled "site:cb7tuner.com not shifting". It gave me some items you should look into.
http://www.google.ca/search?q=site%3...ient=firefox-a

Best of luck.

[deevergote]

How's your fluid level? When is the last time the fluid was changed (and what fluid was used?)

[turboHLS30]

Fluids are normal, but I will change the fluids because I know it's been 5, maybe more, years since it's been changed (I've officially owned it for 2 months) If fresh fluids don't work, what's next? 5-speed swap? lol

[PR CB7]

when d4 light or "s" light stay on, means tcu

also, there's a blue connector, with a green and orange wire next to the passenger side kick panel, use a wire and jump it, the d4 light should start blinking, count the blinks and tell us the codes

you could also try both solenoids, shifts and lock-ups if you cant get it to blink

[deevergote]

Use Honda ATF only.

A 5 speed swap would certainly fix the problem.

I say check for error codes anyway. If you get none, perhaps try another TCU (if you can get your hands on one easily enough... find a friend that will let you borrow theirs.)

[turboHLS30]

when d4 light or "s" light stay on, means tcu

also, there's a blue connector, with a green and orange wire next to the passenger side kick panel, use a wire and jump it, the d4 light should start blinking, count the blinks and tell us the codes

you could also try both solenoids, shifts and lock-ups if you cant get it to blink

Isn't there a space where I can stick a paper clip to get the codes?

Use Honda ATF only.

A 5 speed swap would certainly fix the problem.

I say check for error codes anyway. If you get none, perhaps try another TCU (if you can get your hands on one easily enough... find a friend that will let you borrow theirs.)

My dad owns a shop, and specializes in Hondas. Trust me, we have plenty bottles of Genuine Honda ATF. I've already swapped one and nothing changes. I'm going to change my radiator today so I'll check the codes also.

[budrick85]

sounds like the transmission is in limp mode thats exactly what happened with my 91 cb7 when it needed a fluid change and the solenoids cleaned and one replaced, whats happening is you are starting off in second gear no matter wether your in d4 or in first gear and when u shift to 3rd gear its actually jumping in to 4th gear and if your battery is really really low on juice it will cause your solenoids not work either just figured that out the other day my high pressure line on my powersteering hose has been leaking for quite some time and also was rusted onto the rack and pinion so bad that i thought it would never come off finnally got it the other day causing my alt belt to slip resulting in a low charged battery after i changed the hose and got everything clean and back together i put a trickle charge on the battery all night and presto the blinking sport light and limp mode that had been going on for almost a week was gone instantly

[deevergote]

In his car, the D4 light would be throwing the codes, as your S light does. He said there are no codes.

[turboHLS30]

Ok here's an update, when I thought I had changed the TCM to my new one, I actually installed my old one. Stupid me LOL. I opened up the old TCM and it's burnt up. I put the new one in and now it shifts great, but now the D4 light is blinking. Could it be because the new one is from a CD?