• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2.3L (N/A & Turbo) Tech

88 turbocoupe wont run right

  • Thread starter Thread starter badazz84gt
  • Start date Start date Jan 19, 2008
B

badazz84gt

New Member
Apr 4, 2004
3
0
0
Jan 19, 2008
#1
  • Jan 19, 2008
  • #1
Okay i got this 88 turbo coupe that i bought that will not run. I put a new timing belt, plugs, wires, and maf. It will run now but it runs extremley rich and will pop and bang thru the exhaust if you try to give it too much throttle(like no more than a 1/4 throttle) . I have checked fuel pressure good at 35 psi, set timing at 10 advance. I have triple checked that i put the timing belt on properly also. What is interesting is that it will not start on its own unless you spray starter fluid in it. once it starts and runs and comes up to temp you can shut it off and restart it right after and it will start with out starter fluid easily it just sits there and idles okay but faint black smoke is coming out the exhaust. Also if i unplug the maf,map or tps one at a time nothing changes it just acts the same while its running which I cant figure out why . It will however idle weird if you unplug the IAC so it must be working. I am out of ideas and its really getting to the point i am about to part this thing out. Any help is much appreciated. Thanks, Jesse
 

Red_LX

I’m not much help unless you’re looking for ****!
Founding Member
Nov 29, 1999
5,896
73
129
Morgantown, WV...where couches meet their doom
Jan 20, 2008
#2
  • Jan 20, 2008
  • #2
Well for one thing, it doesn't have a mass air sensor, it has a vane air meter (VAM). I hope that's what's on there. Where did you get your "new" one from since I didn't know anyone made new ones?

Have you tried putting on a known good TFI module?

Is it giving a check engine light and/or have you run any codes?

There's also the chance you could have a bad fuel pressure regulator or bad injectors.
 

83 RS TURBO

New Member
Jan 20, 2008
1
0
0
Bethel Pa.
Jan 20, 2008
#3
  • Jan 20, 2008
  • #3
run the codes or it could be the tfi on the dizzy
 

Stinger

Founding Member
Jul 7, 2001
7,754
24
118
Basehor (Kansas City), KS
Jan 23, 2008
#4
  • Jan 23, 2008
  • #4
Black smoke indicates a rich condition.

Scan for codes first of all...and it doesn't have a maf.
 
B

badazz84gt

New Member
Apr 4, 2004
3
0
0
Jan 23, 2008
#5
  • Jan 23, 2008
  • #5
Geez my fault it has a vam on it, and no it is not new its remanufactured. It is rich i relize this, but if it runs how could the tfi be bad? no check engine light
 

Stinger

Founding Member
Jul 7, 2001
7,754
24
118
Basehor (Kansas City), KS
Jan 23, 2008
#6
  • Jan 23, 2008
  • #6
The lack of a check engine light doesn't mean there aren't any codes.
 

kendoo130

Founding Member
May 30, 2002
244
0
16
Huntington Station N.Y.
Jan 24, 2008
#7
  • Jan 24, 2008
  • #7
If you part it PM me

Kenny
 
You must log in or register to reply here.

Similar threads

Hard to start when engine is cold
  • 86_Capri
  • Mar 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
32
Views
969
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 21, 2026
CAMTWO1070
M
85 Capri 5.0 transmission rattle
  • Mamaclean
  • May 2, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
150
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 17, 2026
Mamaclean
M
T
Help with a 95 5L crank no start
  • TheBubbaJoe
  • Nov 4, 2025
  • 1994 - 1995 Specific Tech
Replies
3
Views
446
1994 - 1995 Specific Tech Nov 5, 2025
AeroCoupe
S
Fuel ‘88 GT Runs Rich Cold — Fixes Itself When I Unplug Sensors (ECT, MAF, O2, etc.)
  • Sufarry
  • Nov 6, 2025
  • Fox 5.0 Mustang Tech
Replies
12
Views
841
Fox 5.0 Mustang Tech Nov 9, 2025
Mustang5L5
S
Fox '87 GT can't get to stay running
  • spilly
  • Mar 29, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
27
Views
796
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 20, 2026
spilly
S
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2.3L (N/A & Turbo) Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?