Is there an online electrical schematic for 88 Turbo Coupe? - Ford Mustang Forum
Closed Thread
 
LinkBack Thread Tools
post #1 of 18 (permalink) Old 11-15-2009 Thread Starter
PONY Member
2.3L Member
 
p_books's Avatar
 
Joined: Oct 2009
Location: San Antonio
Posts: 478
 
Is there an online electrical schematic for 88 Turbo Coupe?

Well, it finally happened.

Problem developed on the *new* old car.

Noticed that the cooling fan is not coming on.
I was going through the manual and starting the test (check motor by directly connecting to battery - yes, it works..)

That is when I noticed that the manuals I have (from the factory) don't really give a good electrical schematic. They tell me to check Circuit 45. But they don't say where it is at. If it said Pin 45 on EEC I could find that but Circuit is a bit ambiguous to me.

I have both B manuals, the D and the Electrical & Vacuum Troubleshooting Manual (along with the do it yourself book.) I saw a picture online of the EEC schematic that isn't listed in my book.

So, I was wondering if there is another manual AND if it is online to help me figure out my problem.

Thanks for any help.

80 Mustang 2.3L (C4 Tranny and reliable Holley/Motorcraft 5200 Carb)
80 Mercury Capri 3.3L
86 Mustang 2.3L (my faux DPS Interceptor )
Current - 88 Thunderbird Turbo Coupe
p_books is offline  
Sponsored Links
Advertisement
 
post #2 of 18 (permalink) Old 11-15-2009
MODERATOR
2.3L Member
 
mg man 75's Avatar
 
Joined: Jan 2008
Location: Elkhorn
Posts: 4,278
           
On a 88 model I would say check the ect [engine coolant sensor] It is between injector 2 and 3. Or could be the IRCM module on passenger fender. Of course could be a fan failure. Here is the info that may help. Maurice
Wiring Diagram
2.3 Turbo EEC-4 Specifications, Part Numbers, Calibration Codes, and Pinouts
Here how to test sensor. Note these also apply to non turbo cars for you non turbo 2.3
http://rothfam.com/svo/reference/sensors.pdf
Wiring diagram for a 88 also has diagram for the IRCM
http://www.rothfam.com/svo/reference/88Thunderbird.pdf
Maurice

1989 Mustang 2.3 turbo, rebuilt SVO motor, 88 computer,vam upgrade, adjustable boost control, intercooler, c-4 trans, 7.5 345 turbocoupe rearend, motorsport driveshaft, Black interior.


AFM FORUM MODERATOR
mg man 75 is offline  
post #3 of 18 (permalink) Old 11-15-2009 Thread Starter
PONY Member
2.3L Member
 
p_books's Avatar
 
Joined: Oct 2009
Location: San Antonio
Posts: 478
 
Well, that gives me something to start with.
Thanks Maurice.

And if I might ask, what is the source for your last one,
http://www.rothfam.com/svo/reference/88Thunderbird.pdf ???

Remember wiring diagram was easier to read in my 80 Mustang factory manual.

And I thought the engine coolant sensor was between injectors 3 and 4.
Just out of the reach of my hand. Grrr!

80 Mustang 2.3L (C4 Tranny and reliable Holley/Motorcraft 5200 Carb)
80 Mercury Capri 3.3L
86 Mustang 2.3L (my faux DPS Interceptor )
Current - 88 Thunderbird Turbo Coupe
p_books is offline  
post #4 of 18 (permalink) Old 11-15-2009
MODERATOR
2.3L Member
 
mg man 75's Avatar
 
Joined: Jan 2008
Location: Elkhorn
Posts: 4,278
           
www.rothfam.com - /svo/reference/
http://www.turbotbird.com/faqs/engine.jpg
Maurice

1989 Mustang 2.3 turbo, rebuilt SVO motor, 88 computer,vam upgrade, adjustable boost control, intercooler, c-4 trans, 7.5 345 turbocoupe rearend, motorsport driveshaft, Black interior.


AFM FORUM MODERATOR
mg man 75 is offline  
post #5 of 18 (permalink) Old 11-15-2009
BOSS Member
2.3L Member
 
TOM RENZO's Avatar
 
Joined: Jul 2009
Location: Danbury
Posts: 3,910
 
The cts is probably shot. The Ecm sends a ground out to theIRCM on pins 52 and 55 to command on the fans. a ground on 14 or 17 on the ircm will run the fans to test the relays pink wire or tan orange at the ircm. hope this helps TOM
TOM RENZO is offline  
post #6 of 18 (permalink) Old 11-15-2009
MODERATOR
2.3L Member
 
mg man 75's Avatar
 
Joined: Jan 2008
Location: Elkhorn
Posts: 4,278
           
cts what is that. Haven't heard that one.

1989 Mustang 2.3 turbo, rebuilt SVO motor, 88 computer,vam upgrade, adjustable boost control, intercooler, c-4 trans, 7.5 345 turbocoupe rearend, motorsport driveshaft, Black interior.


AFM FORUM MODERATOR
mg man 75 is offline  
post #7 of 18 (permalink) Old 11-15-2009 Thread Starter
PONY Member
2.3L Member
 
p_books's Avatar
 
Joined: Oct 2009
Location: San Antonio
Posts: 478
 
I'm guessing Coolant Temp. Switch.

I really would like to find a manual with those damn electrical connections clearly labeled and where to find them.

Otherwise, solved the problem. Should have done the wiggle test first. Think one of the fan motors is aftermarket. But I felt the lead to the CTS (yes, that is the official name for it, just checked my manual) and it was loose as a goose. Cleaned and tightened it and noticed problem still. So, reached the electrical connection to one of the fan motors and it came on.

I think whoever had the car before me switched the leads around to the electrical motors. The 4 bladed one on the top came on first. I think the bottom one with 7 blades is the primary fan. Anyone care to confirm this for me?

80 Mustang 2.3L (C4 Tranny and reliable Holley/Motorcraft 5200 Carb)
80 Mercury Capri 3.3L
86 Mustang 2.3L (my faux DPS Interceptor )
Current - 88 Thunderbird Turbo Coupe
p_books is offline  
post #8 of 18 (permalink) Old 11-16-2009
PONY Member
2.3L Member
 
evintho's Avatar
 
Joined: Dec 2005
Location: Santa Rosa
Posts: 552
 
Cool

This is the one I have. It's the real deal. Ford factory wiring diagram.

Thunderbird wiring diagrams - includes TC

'89 LX ragtop with turbo'd TC motor - Thunderstang!
'86 Turbo Coupe (daily driver)
'88 Turbo Coupe (parts car)
evintho is offline  
post #9 of 18 (permalink) Old 11-17-2009
BOSS Member
2.3L Member
 
TOM RENZO's Avatar
 
Joined: Jul 2009
Location: Danbury
Posts: 3,910
 
SORRY WELDER dude OLD CHEVY TERM. Coolant temp sensor. :kooky::kooky::kooky::rollgrin :
TOM RENZO is offline  
BOSS Member
2.3L Member
 
TOM RENZO's Avatar
 
Joined: Jul 2009
Location: Danbury
Posts: 3,910
 
Quote:
Originally Posted by evintho View Post
This is the one I have. It's the real deal. Ford factory wiring diagram.

Thunderbird wiring diagrams - includes TC
Looks like a real good printout of the wiring diagram. And for 40 bucks what a deal. Great find a bargain DUDE. TOM
TOM RENZO is offline  
MODERATOR
2.3L Member
 
mg man 75's Avatar
 
Joined: Jan 2008
Location: Elkhorn
Posts: 4,278
           
No problem that is what I thought. Just making sure I thought I knew every sensor on the 2.3 Maurice.

1989 Mustang 2.3 turbo, rebuilt SVO motor, 88 computer,vam upgrade, adjustable boost control, intercooler, c-4 trans, 7.5 345 turbocoupe rearend, motorsport driveshaft, Black interior.


AFM FORUM MODERATOR
mg man 75 is offline  
post #12 of 18 (permalink) Old 11-29-2009 Thread Starter
PONY Member
2.3L Member
 
p_books's Avatar
 
Joined: Oct 2009
Location: San Antonio
Posts: 478
 
Before I go on, thanks MG Man for posting the pdf link to the TC.
Found the H manual there. Still bought one and am waiting for it.

And thank you Tom for answering my questions PM.

But going through the diagnostics, I come to step X72.

What is the processor they are referring to there?
The ECM?
That is what I think but want to be clear on it.

Thanks.

80 Mustang 2.3L (C4 Tranny and reliable Holley/Motorcraft 5200 Carb)
80 Mercury Capri 3.3L
86 Mustang 2.3L (my faux DPS Interceptor )
Current - 88 Thunderbird Turbo Coupe
p_books is offline  
MODERATOR
2.3L Member
 
mg man 75's Avatar
 
Joined: Jan 2008
Location: Elkhorn
Posts: 4,278
           
ecm. Engine Control Module = engine computer. Here is the 88 manual. Not sure if have this already.
www.rothfam.com - /svo/reference/volumeH/1988/

1989 Mustang 2.3 turbo, rebuilt SVO motor, 88 computer,vam upgrade, adjustable boost control, intercooler, c-4 trans, 7.5 345 turbocoupe rearend, motorsport driveshaft, Black interior.


AFM FORUM MODERATOR
mg man 75 is offline  
post #14 of 18 (permalink) Old 11-29-2009 Thread Starter
PONY Member
2.3L Member
 
p_books's Avatar
 
Joined: Oct 2009
Location: San Antonio
Posts: 478
 
Got it MG Man.
And thanks to Tom, found exactly where the culprit is.
Used the manual to pinpoint the temp sensor on the intake manifold. I always thought it was below the intake manifold, not on it.

Trip to ford dealer tomorrow and i'll be a happy camper.

Will just need to take care of the antilock break light. I think that should be easy to take care of.

*tony just jinxes himself*

80 Mustang 2.3L (C4 Tranny and reliable Holley/Motorcraft 5200 Carb)
80 Mercury Capri 3.3L
86 Mustang 2.3L (my faux DPS Interceptor )
Current - 88 Thunderbird Turbo Coupe
p_books is offline  
MODERATOR
2.3L Member
 
mg man 75's Avatar
 
Joined: Jan 2008
Location: Elkhorn
Posts: 4,278
           
Good luck on the antilock. What I have read alot have removed all that. And went to regular brakes. Conversion if needed is here. It is in the list. It is a file not a link to got to.
NATO Technical Articles

1989 Mustang 2.3 turbo, rebuilt SVO motor, 88 computer,vam upgrade, adjustable boost control, intercooler, c-4 trans, 7.5 345 turbocoupe rearend, motorsport driveshaft, Black interior.


AFM FORUM MODERATOR
mg man 75 is offline  
Sponsored Links
Advertisement
 
Closed Thread

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183