vash90909

Ok i'm completely drained of ideas and i need someone's help. Here is all the info i got. My car is a 08 cobalt L61 Xfe. Factory plug is a 6pin. Here is the pinout from top right to top left, then bottom right to bottom left. Looking at the plug with the tab on top.
A=Brown
B=Yellow
C=Tan
D=Green
E=Grey
F=Purple

Here is the plug for the LSJ TB that ZZP gave me(colors are not right)
A=Green
B=White
C=Grey
D=Purple
E=Brown
F=Yellow
G=Black
H=Blue

Here is the last thing i tried.
A=F
B=E
C=C & H
D=A
E=B & G
F=D

This does not work. The moment i start the engine it shoots up to the rev limiter.

vash90909

This is all the info i could find for the factory pinouts

Pin A (Dark Green): TP Sensor 1 Signal
Pin B (Light Blue/Black): 5-Volt Ref 2
Pin C (Black): Low Reference
Pin D (Purple): TP Sensor 2 Signal
Pin E (Yellow): TAC Motor control 1
Pin F (Brown): TAC Motor control 2
Pin G (Gray): 5-Volt Ref 1
Pin H (Black/White): Low Reference

6-Pin
Pin A (Brown): TAC Motor control 2
Pin B (Yellow): TAC Motor control 1
Pin C (Tan): Low Reference
Pin D (Dark Green): TP Sensor 1 Signal
Pin E (Gray): 5-Volt Reference
Pin F (Purple): TP Sensor 2 Signal

GSDIESEL300

iTrader: (17)

There is a company on ebay I just ordered an adapter from. The name is auto wiring solutions. It's specifically designed for L61 6 pin to be converted to LSJ 8 pin throttle body. Hope this helps I think it was $40. Well worth it.

07BoostedG5

iTrader: (12)

Thats what I have^ but its a waste of money if you already have the lsj pigtail. and the adapter is 50bucks fyi
easy

vash90909

have you tried the adapter yet or are you still waiting. I wired this together like everyone has been saying to but nothing.

07BoostedG5

iTrader: (12)

^ the adapter works but hardwiring works too, I have done it both ways, the only reason I went with the adapter was when I was trouble shooting I thought the wiring may be a issue, but it was not.

GSDIESEL300

iTrader: (17)

I'm still waiting for it to arrive. I'll let you know how it plays out. If not I actually did a lot of research and got the wiring scematic from GM.

vash90909

let me try this...i'm almost to the point i want to rip it out and go back to my N/A build. I'll post an update in a few

07BoostedG5

iTrader: (12)

It will work dont worry. I know how you feel, it took me two weeks to find out I had a bad map sensor, not even Vince could figure it out. It will be worth the trouble believe me

07BoostedG5

iTrader: (12)

as a matter of fact I even have a pic

vash90909

Engine power reduced...Engine Disabled...that is how i have it wired

well i have it yellow to brown, and brown to yellow but if you look at the first post ZZP's connector isn't the right colors

07BoostedG5

iTrader: (12)

Not to ask a dumb question but is your tune loaded? a bad tb wiring wont give engine pwr reduced

You need to ask zzp what each color is to be sure

vash90909

Yes the tune is uploaded. I had it running this morning(not wired like the way you said to) and it idle fine. Problem was the AFR was at 10 at idle(maybe lower since the gague can't go lower). So rich that i watched black **** drip from the exhaust. Vince said it was my TB, that it isn't wired right. I data logged it and sent it to him...so now i'm back to square one with this wiring problem.

GSDIESEL300

iTrader: (17)

There are 2 different 8 pin throttle bodies. You may have the other one. My kit has a throttle body from an Ion Redline and it has a few wires in different places.

vash90909

Great news, do you know what is different?

GSDIESEL300

iTrader: (17)

Not off the top of my head and I think we got rid of the paper. https://www.cobaltss.net/forums/2-2l...dy-l61-157541/
Check that out there's half of the chart in there.

vash90909

on the second page that interview posted was the only one that ever worked...the one vince said was wired wrong.

vash90909

green - a

gray - b, g

tan - c, h

purple - d

yellow - e

brown - f

vash90909

Ok, I'm going to rewire like my last post and go from there. that wiring had it running before. maybe I can play with it from there.

Can anyone give details on there being two 8 pin tb? I'm talking two 8 pin lsj, I already know all three motors have used 8 pin at some point.

Ok, I'm going to rewire like my last post and go from there. that wiring had it running before. maybe I can play with it from there.

Can anyone give details on there being two 8 pin tb? I'm talking two 8 pin lsj, I already know all three motors have used 8 pin at some point.

vash90909

Ok that gets it running and it stays at 1100ish for idle. Try to give it gas and it stumbles a bit but does go up. When the rpms are going back down it goes below idle and comes back up. ARF is at 10 or below...so back to how it was before.

vash90909

OK that threw the TB idle speed Code and put engine in reduced power. When i tried to start RPM shot straight up...so Yellow and Brown are not the problem. Going to put them back and switch the TB Signal wires which are green and purple.

vash90909

ok switching purple and green disabled the engine. Switched them back and deleted codes and like before, starts and idles but WAY WAY to much fuel.

vash90909

ganna leave it like it is and call vince at noon(est) and see what he says. This way i have it wired throws no codes and it starts up nice. He said the TB was wired wrong but really i've tried just about EVERYTHING with this wiring.

coopercharge

iTrader: (4)

The question I have is; are you using dheap butt-connectors, or are you soldering them like they should be?

vash90909

solder at first but with all this wiring changes i have done i'm using butt connectors. Even if i solder(which is what i'm doing once it is all sorted out) i dont see this 10 to 1 or below AFR leaving...Began thinking maybe one of the injectors are stuck open but i think vince can see if that was happening.