Author Topic: Turbo 3.1 woes  (Read 1983 times)

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Offline Jonpro03

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Re: Turbo 3.1 woes
« Reply #30 on: September 01, 2010, 08:29:15 PM »
I finished the wiring harness diagram for the megasquirt swap, this setup is using GMDIS with an external trigger:

Megasquirt = signal = TGP engine harness


20 tan/yellow = intake temp = C22 LT GRN
21 purple = coolant temp = C16 YEL
22 blue = tps signal = C15 DK BLUE
23 lght blue = 02 = A16
24 green = CPS = D13 PPL/WHT
25 gray = iac1 = A1 LT BLU/WHT
26 gray/red stripe = 5v ref = C12 GRY
27 white/blue strp = iac2 = A7 LT BLU/BLK
28 red/white stipe = 12v = D17/C7 ORN
29 green/red str = iac3 = A8 LT GRN/WHT
31 orange/black = iac4 = A2 LT GRN/BLK
32 gray/yellow = bank1 inj\ = D9 LT BLU (2 4 6)
33 gray/yellow = bank1 inj/
34 pink/black = bank2 inj\ = D3 LT GRN (1 3 5)
35 pink/black = bank2 inj/
36 yellow/black = ICM = C9 TAN/BLK
37 orange/white = fuelpump = D7 GRN/WHT

9 SENOR GOUND = C6 BLK/WHT
10 = C5 BLK
11 = C10 BLK
12 = D4 BLK/WHT

I found this documentation to controll the TCC with Megasquirt2 using the fast idle output to trip the solenoid.

For example, if you wanted to use the FIdle output as a TCC control, and the accel LED as an indicator that the TCC is active, you would set:

* FIdle (PM2):
o Port PM2, enabled
o variable = map < threshold = 75, hysteresis = 10,
o AND
o variable = coolant > threshold = 160, hysteresis = 10,
o Power-on value = 0
o Trigger value = 0
* Accel LED (PM4):
o Port PM4, enabled
o variable = map < threshold = 75, hysteresis = 10,
o AND
o variable = coolant > threshold = 160, hysteresis = 10,
o Power-on value = 0
o Trigger value = 1
Example: Torque Converter Clutch Control

Suppose you want to engage OD (overdrive) over 50 kPa MAP, and engage the LU (torque converter lock-up) clutch at 75 kPa MAP, provided temp is over 140 and RPM is over 2000. For a torque converter clutch control (TCC) using FIdle with 3 conditions (rpm > 1500, CLT > 160, map < 75), set:

PA0 - Knk Enable:

* rpm > 1500
* coolant > 160

and

PM2 - FIdle:

* map < 75
* port0 > 63

Then use the FIdle output to drive the TCC relay (if you have a relay board, you are all set). Not that you also need a 3/4 gear indicator switch and a brake switch in the external circuit:

EDIT: megamanual won't let me copy the image of the TTC Control Circuit so here's the link to the webpage, the image is about 3/4 the way down the page. http://www.megamanual.com/ms2/spare.htm



Is the brake switch already present on the harness or is that controlled by the TGP ecm?
If so, it's as simple as:
30 green/orange = TCC = B7 TAN/BLK

1997 Grand Prix GTP coupe topswap
1990 Turbo Grand Prix Black/Tan Interior 15.05 1/4mile

Offline Jonpro03

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Re: Turbo 3.1 woes
« Reply #31 on: September 10, 2010, 07:09:30 PM »
The Megasquirt found a new home.


Where'd it go?


That's the intercooler


The whole radiator assembly was moved 8 inches to the driver side so I could run the boost tubes.


The trans cooler made it's way in front of the intercooler but it hasn't found a home yet. The oil pan was drilled/tapped and I bought the correct adapter and ran a steel braid line for oil feed.

1997 Grand Prix GTP coupe topswap
1990 Turbo Grand Prix Black/Tan Interior 15.05 1/4mile

Offline Jonpro03

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Re: Turbo 3.1 woes
« Reply #32 on: September 19, 2010, 11:07:54 PM »

BAM!

Ya, that's a 3500 sitting in a TGP. Big woop, wana fight about it?
« Last Edit: September 19, 2010, 11:08:26 PM by Jonpro03 »

1997 Grand Prix GTP coupe topswap
1990 Turbo Grand Prix Black/Tan Interior 15.05 1/4mile

Offline killinprixs

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Re: Turbo 3.1 woes
« Reply #33 on: September 20, 2010, 09:12:41 AM »
that is soo not a 3500.....   :laugh:  haha just kiddin Jon its lookin good, how did all the wiring go?

Offline Jonpro03

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Re: Turbo 3.1 woes
« Reply #34 on: September 20, 2010, 03:30:11 PM »
Damn near killed me  :laugh:
But I know every single wire under the hood of that car now!

1997 Grand Prix GTP coupe topswap
1990 Turbo Grand Prix Black/Tan Interior 15.05 1/4mile

Offline NTRCOOL

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Re: Turbo 3.1 woes
« Reply #35 on: September 21, 2010, 01:22:37 AM »
See and you didn't even have to pay UTI a bunch of cash to do it.
NTRCOOL

1989 RED TGP leather intr, hard top, added a wing from gtp
1990 RED TGP leather intr moon roof, blowoff valve msd ign
1990 RED TGP leather intr, moon roof, needs just bout everything
1990 Red TGP leather intr, Moon roof, needs trans work
1990 BLACK TGP cloth intr, aftrmrkt moon roof
1977 Chevy Caprice areo back coupe
1980 olds 98 coupe
1981 Lincoln mrk6 coupe
1987 Buick Station wagon-gone to the demo
1987 Buick LeSabere T-Type
1990 Cadillac brougham

Offline Jonpro03

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Re: Turbo 3.1 woes
« Reply #36 on: October 15, 2010, 10:28:40 PM »


It breathes its first breath of life.
http://www.youtube.com/watch?v=Tkya5xFZmZw
« Last Edit: October 15, 2010, 10:29:12 PM by Jonpro03 »

1997 Grand Prix GTP coupe topswap
1990 Turbo Grand Prix Black/Tan Interior 15.05 1/4mile