4R70W install-S197...Here is a Write Up for you!

[Fake_Snake]

You could see mine when you come to Houston next week. And I'll check yours out

No homo

 

[05stroker]

You could see mine when you come to Houston next week. And I'll check yours out

No homo

I know you didn't just say "show me yours and Ill show you mine"... LOL

See you in Houston.

 

[crownaviation]

got her done! still on stands as had a small leak around the damn temp sensor bung.. ugh . going to drop the pan and weld in a real bung instead of that garbage sent with the pan.

I am going to include some info that may help others. going to write it all up and just drop it in on this thread. As far as wiring, all worked as planned and happy about that!

 

[05stroker]

got her done! still on stands as had a small leak around the damn temp sensor bung.. ugh . going to drop the pan and weld in a real bung instead of that garbage sent with the pan.

I am going to include some info that may help others. going to write it all up and just drop it in on this thread. As far as wiring, all worked as planned and happy about that!

Good to see all coming together.

 

[Fake_Snake]

I know you didn't just say "show me yours and Ill show you mine"... LOL

See you in Houston.

Lol, I typed it out read it and was still like fuck it lol he will get what I'm saying!
I pulled the plate off to reconnect my ac fan plug, I think I might have them raise the shifter up about a 1/2-1" for a more ergonomic feeling

Nice crown

I've been getting use to the whole shifting thing. Ive yet to try out the trans brake.

I bring the car back to the tuner tomorrow for a final WOT tune session hopefully wensday (my work schedule has me dropping it off that early)..

 

[crownaviation]

Lol, I typed it out read it and was still like fuck it lol he will get what I'm saying!
I pulled the plate off to reconnect my ac fan plug, I think I might have them raise the shifter up about a 1/2-1" for a more ergonomic feeling

Nice crown

I've been getting use to the whole shifting thing. Ive yet to try out the trans brake.

I bring the car back to the tuner tomorrow for a final WOT tune session hopefully wensday (my work schedule has me dropping it off that early)..

Lol.. Trans brake was one of the first things I tried

 

[Fake_Snake]

Lol, the mechanic tried it out after install that's how the noticed something was wrong.. Lol I just have yet to try it lol

 

[crownaviation]

K.. no leaks but reverse lights stay on in all gears. Not in reverse but plugged my oem connector into the mlps just to have reverse lights. Computer is limiting torque. Can I just unplug the mlps? Will later go into the sjb to grab the lights and already have a reverse switch for the tb

Running full mvb

 

[crownaviation]

K.. New one. I thought the neutral safety was in the shifter. Guess not. Car won't start without the mlps plugged in. Tried returning to stock and now freggin sct will not let me load the tune. Fml

 

[TungstenGT06]

Your having the same problems I have with my car. With the stick tune in the computer the reverse lights stay on and with the auto tune in they work properly. The problem is the car will not run with the auto tune. I think we are going to wire them to the trans brake button because I need to use it for reverse anyway.

 

[crownaviation]

Your having the same problems I have with my car. With the stick tune in the computer the reverse lights stay on and with the auto tune in they work properly. The problem is the car will not run with the auto tune. I think we are going to wire them to the trans brake button because I need to use it for reverse anyway.

My impatience got the best of me. I loaded the stock tune now the stupid sct will not read strategy. Now my trip and odometer are showing error.. still stuck on stock tune,, and like you my car will not run on stock tune (even if it had the stock trans in it it would not start on stock cause the injectors)

sct will have a new format for me tomorrow morning to try.

 

[crownaviation]

k. some info on the sct issue and returning to stock. We loaded a manual pcm tune to the sct and the car. While I was trying to diagnose the reverse lights thing I wanted to verify the lights were working correctly on stock tune so returned my car to stock.

Before I asked anyone this is what happened..

The stock auto file is much larger than the manual file. Don't remember the exact size but lets just say the auto tune file is 500k and the manual is 400k just to have some numbers..

When I loaded the stock file it only transferred 400K worth of the stock file lol. This resulted in no starter, dashed lines in the odometer and I am sure other things I did not explore.

So.. Had SCT recover the handheld and was able to load the stock tune back to the car.. no ids or dealership involved, just me the dumbass in the garage lol. JUST TO HIGHLIGHT.. SCT had to do this thru their server. I had them access my laptop and they did everything but plug the sct into the laptop and turn it on. Overall simple for me so there we are. A SCT engineer had to recover my stock tune etc.. and some other things I am sure

NOTE TO SELF.. consult tuner before just doing things! I was used to loading tunes and basic stuff just did not realize there was a difference between auto and manual strategy resulting in problems returning to stock. I think the fact you can only have one vehicle pcm loaded at a time is what locked me up. I totally get that if one box could do any and all cars SCT would go out of business so protecting their product is good by me

Now, moving forward..

With the stock auto tune the reverse signal thru the MLPS works correctly. This is being resolved in the custom manual tune as we speak. I will update soon.

 

[TexasBlownV8]

take a look at the stock 5r wiring diagram:
http://iihs.net/fsm/?dir=40&viewfile=Transmission Controls - 5R55S.pdf

- the neutral safety switch in the DTR pins 10 and 12. Not having these plugged in or otherwise connected will prevent the car from starting of course.
- there's a set of unused connectors that only connects when reverse is selected; those could theoretically be used for reverse light control.

It's strange that reverse is detected when plugged in and in all positions.
IIRC, the switch on the 4r is a little different, and that may be causing some of your issues, too, in that it's sending the wring position to the pcm.
Of course a manual pcm does not use the same circuit:
http://iihs.net/fsm/?dir=40&viewfile=Reversing Lamps.pdf

 

[crownaviation]

take a look at the stock 5r wiring diagram:
http://iihs.net/fsm/?dir=40&viewfile=Transmission Controls - 5R55S.pdf

- the neutral safety switch in the DTR pins 10 and 12. Not having these plugged in or otherwise connected will prevent the car from starting of course.
- there's a set of unused connectors that only connects when reverse is selected; those could theoretically be used for reverse light control.

It's strange that reverse is detected when plugged in and in all positions.
IIRC, the switch on the 4r is a little different, and that may be causing some of your issues, too, in that it's sending the wring position to the pcm.
Of course a manual pcm does not use the same circuit:
http://iihs.net/fsm/?dir=40&viewfile=Reversing Lamps.pdf

Interesting. With manual tune car starts, drives, shifts, converter locks, tb and od all work as supposed to.

except.. on manual tune reverse lights stay on all the time, resulting in engine controls limiting torque

With AUTO tune the car will crank (cant run my car with the injectors on stock tune and sure pcm will not like trans is not there). I have not tried my custom "auto" tune with the 4r yet but lights worked correctly on that too. Sure it would start

However.. on AUTO tune the reverse lights function as they are supposed to..

In both cases, the neutral safety goes thru the DTR (mlps on the 4r). They are physically the same plug. If they were pinned differently then the reverse would not work on the AUTO tune, and the car would not start in either case..

I did see those circuits for auto vs manual but not sure those will help any. It is the switching between the two tunes. I bet if I take the signal from the dtr on the automatic and switch that one wire to pin 21 on the manual diagram it may work as I want with no additional work with figuring out the tune.. Problem may be related to using a different strategy in the tune. I will have more answers to that soon.

In either case, just for info.. does the signal go from the PCM thru the dtr then to the engine contol? If so I could just take that pin 21 (from pcm) and transfer it to pin 5 on the mlps (DTR)?

 

[TexasBlownV8]

I suspect the reverse lamps difference is wired into the pcm circuits and pins, and that tuning cant change it.
Now that I think about it, I think I added a wire for the manual pcm for the backup lights circuit, since it is a different pcm pin, then wired the proper wire together for reverse detection from a manual. This is using a modified auto harness with a manual pcm.

Either way, the pcm controls the backup lights via a network signal to the sjb. Using the stock circuits, you have to get the pcm to know when it is and is not in backup position. Yuk.

 

[crownaviation]

I suspect the reverse lamps difference is wired into the pcm circuits and pins, and that tuning cant change it.
Now that I think about it, I think I added a wire for the manual pcm for the backup lights circuit, since it is a different pcm pin, then wired the proper wire together for reverse detection from a manual. This is using a modified auto harness with a manual pcm.

Either way, the pcm controls the backup lights via a network signal to the sjb. Using the stock circuits, you have to get the pcm to know when it is and is not in backup position. Yuk.

Then how does it work when swapping from auto trans to manual trans? Basically same thing here I would imagine.. as the pcm is not changed from auto to manual swap. In the tune, the pcm auto trans functions can be switched off and from what sct says other required parameters can be adjusted also. This is of course, assuming using a auto pcm strategy not a manual.

The other bastard part is I can barely get the mlps connector on and off with the trans installed. That and little to NO chance of splicing the harness near the connector with trans installed. Any experimenting will be a bastard unless I can grab wires near the pcm or bec.

At this point I would rather buy a damn manual PCM than take the whole trans back out agian. Fuk.

Or install one of these
http://www.redlinestands.com/catalo...39/kernel-9k-lb-clear-floor-2-post-lift-p-920

 

[TexasBlownV8]

Lol, yeah I clearanced my tunnel there for a little more room. Th 4r is a lot bigger indeed.

All I know (which is not much) is that I had to work on getting my reverse lights to work properly. The wiring harness I used apparently uses the reverse switch in the mlps, and as I mentioned, I added a wire to the pcm connector for manual reverse detection. Using those two, my reverse lights work properly. Until I did this, my reverse lights stayed on all the time, too, I think, or at least they weren't working at all; even with a manual pcm.

 

[TungstenGT06]

Lol, yeah I clearanced my tunnel there for a little more room. Th 4r is a lot bigger indeed.

All I know (which is not much) is that I had to work on getting my reverse lights to work properly. The wiring harness I used apparently uses the reverse switch in the mlps, and as I mentioned, I added a wire to the pcm connector for manual reverse detection. Using those two, my reverse lights work properly. Until I did this, my reverse lights stayed on all the time, too, I think, or at least they weren't working at all; even with a manual pcm.

Do you have any pictures of the wiring or any details on how you wired it up? I'm having the same issue's as Crown and it's making my friend and I crazy!

 

[crownaviation]

So I may go over to the harness ( intercept it by the passenger valve cover) to and cut the LB/BK wire from pin 5 on the dtr plug to the pcm and see what happens. . If it eliminates the reverse problem I can just take that signal from the pcm and hook it up to my reverse switch I already have installed.

Atleast it will be easy to unfuck if it does not work

This looks like the bitch to me..

 

[TexasBlownV8]

That's not the "reverse" signal in the stock harness!

Think of it this way: pins 3, 4, 5, 6 serve as a binary switch combination that the pcm interprets into a specific gear selection. The switches are usually open or closed, except for pin 3 which is either closed (0 ohms to ground) or shunted with a resistor (270 ohms) when open; that's how the pcm can detect if the connector is unplugged.

So if you consider a closed/grounded switch as a "0" and an open as "1",
using pins on the connector:
3 4 5 6 Position
------------------
0 0 0 0 Park
1 0 0 1 Reverse
1 0 1 0 Neutral
1 1 1 1 Drive
0 0 1 1 3rd
0 1 0 1 2nd
0 1 1 0 1st

To indicate reverse, you should be able to short to ground pins 4 and 5, when in reverse, and open those when not in reverse.
You'd maybe need the 270 ohm to ground on pin 3 as well to indicate when you're in drive while leaving all the other ones open/floating.

(And "ground" here is pin 2 on the connector, PCM signal ground.)