Been looking around but had no luck.

Just wondering if anyone has had experience with these trannys and if they are as shitty as the usdm LS A/T?

Thank you

 

What exactly are you trying t do? The '94 - '01 Integras used a separate TCM to control the tranny, and they have extra sensors and shift solenoids that the M24A B16A tranny's lack.

 

Trying to swap a fresh auto b16 into my girls DB

By the looks of it I'm prob not gonna be able to use a b16 a/t and pass inspection tho.

Any ideas?

 

What state? What year teg? If it's CA you can't run a B16A A/T period since there is no USDM ECU for that application. If it's OBD1 you could do it in most other states. If it's OBD2 then it depends on whether or not you have emissions testing. Either swap in a 5 speed or put in another LS.

 

Yea that's the problem I've run into cause its a 97 and I'm in RI so it has to pass emissions and obd scan.

Only thing I could think of that may work is throw the B16 in with the LS trans and run it on the LS or a obd2 sohc vtec ecu for inspection

 

If you don't mind swapping the tranny every year for inspection you could do that. The LS tranny has a mainshaft speed sensor, countershaft speed sensor and a couple of shift solenoids the B16A tranny doesn't have, and the LS ECU/TCU will throw codes for it.

 

Does the 99 civic EX have those sensors in the trans?

 

Yep, any '96 - '00 D-series actually.

 

so I should be able to run the b16 with the usdm LS trans on a 99 ex ecu without issues, theoreticly.

Lol more like hopefully

 

Nope. Fuel and timing maps are different, so it'll tend to run like crap and blow up at some point. Also automatic Y8s use a 3 wire IACV (no B-series does) and the gear ratios are different so it's going to throw a few transmission codes. It just isn't going to happen and pass emissions with an automatic.

 

That is incorrect. The 2000 and 2001 USDM LS Integras have the auto functions built into the ECU. Prior to that OBD1 and OBD2a, there is a seperate TCU that is on the driver side kick panel as well as the ECU located in the passenger side kick panel.

That is also incorrect. The OBD2a Auto B16a trans which uses the OBD2a P2T-J91 ECU has provisions for all the same sensors that the LS trans TCU requires. In addition to that, the OBD2a auto B16a trans uses a TCU (28100-P2T-0030) that requires the same inputs/outputs that the LS TCU uses.

Additionally, the gear ratios in the LS and B16a auto OBD2 are the same. The only differences are in the controls of the rpm shift points and AT maps. I still need to take time to go through the drawings for the final drives, but 1-4 are the same gear ratios.

There is also the option of using the OBD2a auto GSR ECU and mission if you can get one. As far as using these to pass emissions and still communicate with the OBD port, I can't be certain on that. Should function same as USDM, but I have never had to build one for a customer that tried it.

 

I've always been told jdm ecus will not connect to and obd.
But I've never done it personally to know.

Any info is appreciated, id like to get this done asap

Again the vehicle is a 97 Integra LS A/T
id like to get a B16 w/ A/T.
Also if your wondering why I don't use the LS a/t I have... its starting to shift hard slip like crazy.

Thanx again fellas

 

Honestly, I would not put the smaller displacement B16 in the Teg. I would either put the auto GSR in there or LS/Vtec with the GSR ecu or just get another trans on the LS motor.

 

what would be the cons of usings a b16? I'm not looking for power, its a daily putt putt mobile

 

That's true, but those ECUs have an immobilizer which renders them useless outside an '00 - '01 Integra (unless you have the immobilizer removed and replaced with a dummy unit) So I never bothered to mention them.

You sure? I know even the Y7 and Y8 automatics are different and it causes the PCM to throw a P0715 code.

They wont communicate with the DLC port.

Complete lack of torque. It's not that bad with a 5 speed since the B16A tranny is geared so low and close together, but with an automatic, ugh. An LS will work better and there's essentially no work involved.

 

Just correcting the post you made about all 94-01 Integras having a seperate TCMs and additional sensors. I made no reference to the immobilizers.

Yes...both the drawings as well as the service manuals show this information. The TCU sensors are the same as well as the pinout locations for both the LS and B16a TCU.

Ok cool. So you have confirmed that the OBD2a auto GSR ecu doesn't communicate through the port?

 

So the b16a a/t does use a tcm??

I'm wicked confused now.

I already know that another LS would be easier. But that's not what I want.
As far as torque, as long as there is enough to pull the car, than ill be happy.

Any of you guys have experience with and obd2 sim?