4L60e options, use a MS2?

[TheSilverBuick]

I have two cars running full sequential MS3/3x and I'm looking at installing a 4L60e into one of them. I also have sitting on a shelf collecting dust a v3.0 board with MSII processor.

Looking at the manual's, I am not 100% clear so I want to ask. Can I simply use the 3.0 board with MSII that I have as the transmission controller, just update the firmware and minor external wiring modifications? I was considering getting a microsquirt, but if this will work I'd rather go down this path.

With that, it'll be CAN'd into the MS3/3x EFI controller, so will not need a separate TPS, MAP, etc. so can utilize the unused analogue inputs for non-transmission related analogue inputs? Or have the built in MAP sensor read engine crankcase or exhaust back pressure?

[jsmcortina]

Check out the transmission controller Supplement manual - it covers MS2/V3.0 board mods.

James

[TheSilverBuick]

Reading the supplemental manual, it mentions lots of "omitting" of parts during assembly, but I am going to be re-using a "spare" fully assembled 3.0 board with an MS2, are there consequences to leaving the "omitted" parts in place? I'll be getting the needed TIP transistors**, diodes, resistor and jumpers for the 4L60e and installing them as diagrammed, just concerned about all the other things that will still be connected but not mentioned in the supplemental manual.

**Follow up questions, in this application is there a fundamental difference between the BIP373 transistor and the TP121, or are they interchangeable? My Q16 spot has the BIP373, and the directions indicate it can stay in place or use a TP121. Can I use BIP373 transistors in place of the two TP121's for the 4L60e?

**Edit** Nevermind, found that yes I do jumper them to use the EPC and TCC solenoids. Missed that.
Also, when I remove R38 and R37, should I simply leave the spots empty or is there a use for the outputs if I jumper them? I understand they are current limiting resistors for the two injector drivers, just not sure if those outputs are available to use after a transmission controller install.

[TheSilverBuick]

Another follow up question, I am using a '93 4L60e (basically first year).

The LUF solenoid (U -Solenoid D), is it necessary? And if so the table shows to hook it up to "D16+TIP122" but the rest of the MS2 modification directions do not mention it at all. I'm perfectly good with the torque converter either being locked or unlocked, don't need it to partially slip. So if I leave it out, just set the LUF to off and all will be well?

[TheSilverBuick]

?

[jsmcortina]

From memory tge early 4L60E didn't have the LUF, so no need to install components fir it and don't enable it.

James

[TheSilverBuick]

That sounds right to me too.

Thoughts on the TP121 versus BIP373? And having a fully assembled 3.0 board with most the "omitted" parts in place? I'm just worried about as I add the various trans control jumpers that there may be a "short" through installed pieces that were expected to be omitted.

[jsmcortina]

Thoughts on the TP121 versus BIP373?

In this application I don't think there will be an issue.

And having a fully assembled 3.0 board with most the "omitted" parts in place? I'm just worried about as I add the various trans control jumpers that there may be a "short" through installed pieces that were expected to be omitted.

You are best to check the schematics to see how that works out.

James

[TheSilverBuick]

Okay, I'll back track some of the jumpers to see what else may be connected. Circuitry isn't my strong suit... Thanks.