Go Back   Rotary Car Club > Tech Discussion > RX-7 2nd Gen Specific (1986-92)

RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

Reply
 
Thread Tools Display Modes
Old 08-28-2009, 11:53 PM   #1
batmanfc
Rotarys Ruin Lives
 
Join Date: Aug 2009
Location: Wise, VA
iTrader: (0)
Posts: 66
Rep Power: 16
batmanfc is on a distinguished road
Default What do these go to?

I got my harness loose today. Come across some wiring that I'm not sure what it goes too.

Not sure about these first of all. They sitting near the oil filter but weren't hooked to anything.


These were hanging near where the air bypass would have been if I had one. Not connected to anything either.


This one was also hanging down near the air bypass valve. Not connected. And there is a wire there that is cut. Not sure where it should go but the O2 sensor had been cut. I was thinking maybe it was supposed to go to it?






__________________
'88 Turbo II
'89 GXL
'07 Cobalt: DD
batmanfc is offline   Reply With Quote
Old 08-29-2009, 01:38 AM   #2
Rotary#10
Rotorhead
 
Rotary#10's Avatar
 
Join Date: Sep 2008
Location: "the town " Oakland
iTrader: (1)
Posts: 219
Rep Power: 17
Rotary#10 is on a distinguished road
Default

I strongly believe in that last pic the green connector is for the thermosensor. In the first pic I believe most of that is emissions related with check valves that are connected via vac hoses. Check the FSM or a hanyes manual. Could you give is the year and model of your rx7. that would help us out a alot.
__________________
Currently running:
90 GTUs converted to S5 TurboII. Track car.
90 N/A GTUs..
Running project car

89 N/A GTUs in Black #2
10/6/18
Blown coolant seal undergoing rebuild and restomod.
Rotary#10 is offline   Reply With Quote
Old 08-29-2009, 02:14 AM   #3
need RX7
Clean S4 Nutswinger
 
need RX7's Avatar
 
Join Date: Mar 2008
Location: Sterling Heights, MI
iTrader: (0)
Posts: 485
Rep Power: 17
need RX7 is on a distinguished road
Default

1st pic, the 4 colored ones that look the same are for emissions solenoids. The different shaped green one it the TPS test connector (I think)

2nd pic, black and white ones are to the ACV and I think that longer one goes to either the thermosensor or the BAV.
__________________
-Ted
-1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status.
-1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.

need RX7 is offline   Reply With Quote
Old 08-29-2009, 05:11 AM   #4
RETed
RCC Addict
 
Join Date: Mar 2008
Location: Honolulu, Hawaii USA
iTrader: (1)
Posts: 1,813
Rep Power: 18
RETed will become famous soon enough
Default

Quote:
Originally Posted by batmanfc View Post
Not sure about these first of all. They sitting near the oil filter but weren't hooked to anything.
Most are emissions.
The lighter green one on the left is a check connector and not normally connected to anything.

Quote:
These were hanging near where the air bypass would have been if I had one. Not connected to anything either.
ACV cluster...
Is the wires away from you pictured below?

Quote:
This one was also hanging down near the air bypass valve. Not connected. And there is a wire there that is cut. Not sure where it should go but the O2 sensor had been cut. I was thinking maybe it was supposed to go to it?
That's for the BAC valve or the idle control valve.
The other cut wire is for the O2 sensor, like you guessed.


-Ted
__________________
reted_2000@yahoo.com
Technical Advisor
FC3S Pro
http://fc3spro.com/



Quote:
Originally Posted by TitaniumTT View Post
because you're only as good as your backup
RETed is offline   Reply With Quote
Old 08-29-2009, 10:55 AM   #5
batmanfc
Rotarys Ruin Lives
 
Join Date: Aug 2009
Location: Wise, VA
iTrader: (0)
Posts: 66
Rep Power: 16
batmanfc is on a distinguished road
Default

Ok. Thanks. My car is an '88 TII by the way. Sorry I meant to mention that. Would I need to run the 4 emissions plugs? I'm pretty sure the emissions has been taken off. It has no air pump.

Yea the ones pictured in pic 2 away from me is the ones in the last picture. The ones in pic 3 are relatively close to the ones in pic 2.

Where would the ACV cluster plug to?

I thought the one cut in pic 3 was to the o2 sensor but I wasn't positive. If I were to splice in a connecter from and s5 n/a for the o2 sensor would it work? And I don't believe I have the BAC valve. There are some blockoff plates on the right side of the intake manifold. One is relatively large. It had an aftermarket BOV on it. Would that make a difference as to remove the BAC? I'll try to get some pics today. If I can't today I will definetly have some tomorrow.
__________________
'88 Turbo II
'89 GXL
'07 Cobalt: DD
batmanfc is offline   Reply With Quote
Old 08-30-2009, 07:48 AM   #6
RETed
RCC Addict
 
Join Date: Mar 2008
Location: Honolulu, Hawaii USA
iTrader: (1)
Posts: 1,813
Rep Power: 18
RETed will become famous soon enough
Default

Quote:
Originally Posted by batmanfc View Post
Would I need to run the 4 emissions plugs? I'm pretty sure the emissions has been taken off. It has no air pump.
The emissions solenoids are not absolutely necessary to allow the engine to run.
3 of them are emissions, while the (darker) green plug is for the twin scroll solenoid for the turbo.
http://fc3spro.com/TECH/PROBLEMS/EM/solenoids.htm

Quote:
Where would the ACV cluster plug to?
The ACV is normally located right above the turbo, mounted on the lower intake manifold.
I think yours is deleted and blocked off.

Quote:
If I were to splice in a connecter from and s5 n/a for the o2 sensor would it work?
Yes, but it's not necessary to steal that connector.
Any 1/4" (female?) spade connector can be crimped on.
Also, BE CAREFUL to remove the outer wire braid shield on the wire itself before crimping the connector on.
The outer braid is grounded on the other end.
If you get this braid connected to the inner signal wire of the O2 sensor wire, you can blow electronics inside the stock ECU.


Quote:
And I don't believe I have the BAC valve. There are some blockoff plates on the right side of the intake manifold. One is relatively large. It had an aftermarket BOV on it. Would that make a difference as to remove the BAC? I'll try to get some pics today. If I can't today I will definetly have some tomorrow.
I don't know why people get rid of the stock BAC valve.
The BAC valve does a very good job allowing the engine to idle, especially on the street.
Removing the BAC valve can cause idling headaches down the road.

Hard to figure out what you're describing.
Get some pics, and we can definitely help you figure out what it is...


-Ted
__________________
reted_2000@yahoo.com
Technical Advisor
FC3S Pro
http://fc3spro.com/



Quote:
Originally Posted by TitaniumTT View Post
because you're only as good as your backup
RETed is offline   Reply With Quote
Old 08-30-2009, 10:45 AM   #7
batmanfc
Rotarys Ruin Lives
 
Join Date: Aug 2009
Location: Wise, VA
iTrader: (0)
Posts: 66
Rep Power: 16
batmanfc is on a distinguished road
Default

Ok. I will definetly get the connecter off of the other car for the o2 sensor. I didn't know if the n/a connecter would work for the TII. I will get some pics today too. I didn't have a chance to get them yesterday. Where exactly would the twin scroll soleniod hook up? Is it on the turbo which is probably a dumb question? I am assuming it is. Thanks guys will get some more pics today.
__________________
'88 Turbo II
'89 GXL
'07 Cobalt: DD
batmanfc is offline   Reply With Quote
Old 08-30-2009, 11:23 AM   #8
Whizbang
Respecognize!
 
Whizbang's Avatar
 
Join Date: Jul 2008
Location: Δx = ħ/2Δp
iTrader: (5)
Posts: 3,190
Rep Power: 20
Whizbang will become famous soon enough
Default

the flapper that directs for the twin scroll is actually powered via air pressure nothing electrical.
__________________
For current updates and event coverage check out
Follow on Twitter! @WhizbangRally
Whizbang Rally's Webpage | Facebook
Whizbang is offline   Reply With Quote
Old 08-30-2009, 09:54 PM   #9
batmanfc
Rotarys Ruin Lives
 
Join Date: Aug 2009
Location: Wise, VA
iTrader: (0)
Posts: 66
Rep Power: 16
batmanfc is on a distinguished road
Default

Where would the soleniod go then? Sorry i'm kinda confused.
__________________
'88 Turbo II
'89 GXL
'07 Cobalt: DD
batmanfc is offline   Reply With Quote
Old 08-31-2009, 12:27 PM   #10
Rotary#10
Rotorhead
 
Rotary#10's Avatar
 
Join Date: Sep 2008
Location: "the town " Oakland
iTrader: (1)
Posts: 219
Rep Power: 17
Rotary#10 is on a distinguished road
Default

it would be a good idea to take pics and plenty of them. For future notes and bragging right. So you can see where are the connections go. hehe
__________________
Currently running:
90 GTUs converted to S5 TurboII. Track car.
90 N/A GTUs..
Running project car

89 N/A GTUs in Black #2
10/6/18
Blown coolant seal undergoing rebuild and restomod.
Rotary#10 is offline   Reply With Quote
Old 08-31-2009, 10:00 PM   #11
RETed
RCC Addict
 
Join Date: Mar 2008
Location: Honolulu, Hawaii USA
iTrader: (1)
Posts: 1,813
Rep Power: 18
RETed will become famous soon enough
Default

Quote:
Originally Posted by batmanfc View Post
Where exactly would the twin scroll soleniod hook up? Is it on the turbo which is probably a dumb question? I am assuming it is. Thanks guys will get some more pics today.
The twin scroll solenoid would be located right around the oil fill pipe.
All of the emissions solenoid would be located there.
I have a feeling someone already yanked them all.

The twin scroll solenoid would be connected to the twin scroll actuator located on the turbo exhaust manifold.
The twin scroll actuator is that huge, metal, soda-can sized thing that has a metal rod that extends to the turbo exhaust manifold - if it's still intact.


-Ted
__________________
reted_2000@yahoo.com
Technical Advisor
FC3S Pro
http://fc3spro.com/



Quote:
Originally Posted by TitaniumTT View Post
because you're only as good as your backup
RETed is offline   Reply With Quote
Old 09-04-2009, 12:22 AM   #12
batmanfc
Rotarys Ruin Lives
 
Join Date: Aug 2009
Location: Wise, VA
iTrader: (0)
Posts: 66
Rep Power: 16
batmanfc is on a distinguished road
Default

You were right. It has all been yanked haha. Also where is the connector or what does the connecter look like for the oil pressure gauge.
__________________
'88 Turbo II
'89 GXL
'07 Cobalt: DD
batmanfc is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 12:47 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Hosted by www.GotPlacement.com
Ad Management by RedTyger