• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

TPS Voltage Question

  • Thread starter Thread starter 4Jenna
  • Start date Start date Nov 7, 2004

4Jenna

Founding Member
Sep 12, 2001
4,326
6
69
AZ
Nov 7, 2004
#1
  • Nov 7, 2004
  • #1
know the basics of this but had a lil prob and needed some help.
Prob.
Make a blast push the clutch in to slow down, rpms fall...car dies. Only on a WOT blast, and then immediate lift. I just swapped to FOX TPS, IAC, and TB...prob started then. I never intially cked my voltage..so here i am.
Ck the voltage..key on eng off. It was at .82volts..ahh lil low no biggy, put it to .96volts.
Heres the big prob, and I dont know if it has anything to do with my car being a 95 because I have been told the tps resets itself automatically, and the EEC controls it all..no adj.
Anyways
I cked the voltage through a full throttle sweep.
Should see roughly 2.71 by part throttle..thats when it tells the cpu WOT, and should see atleast 4.5 at the WOT stop. Well mine never gets over 1.6volts..
I hit 1.6 volts at part throttle, and then the voltage steadily drops when i go further towards WOT....when i hit full WOT I"m seeing .92volts.

So i said yup its bad.
Put a new one in...no change...WTF.
 

4Jenna

Founding Member
Sep 12, 2001
4,326
6
69
AZ
Nov 7, 2004
#2
  • Nov 7, 2004
  • #2
Got it
I was using the black TPS wire for a ground...used a eng bolt and wa-la

Thanks Dave
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Nov 7, 2004
#3
  • Nov 7, 2004
  • #3
umm, the black wire is the ground for the rheostat. if it is compromised, you should continue to see issues. how much resistance does the black wire have? it sounds like it has an open or some other issue. i would hunt that down.

my two cents worth. good luck.
 
You must log in or register to reply here.

Similar threads

SURGING IDLE / NO IDLE CHECKLIST FOR 1996–1998 MUSTANG GT (4.6L 2V) - Work In Progress
  • Noobz347
  • Aug 30, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
1K
1996 - 2004 SN95 Mustang -General/Talk- Aug 30, 2025
Noobz347
SURGING IDLE / NO IDLE CHECKLIST FOR 1999–2004 MUSTANG GT (4.6L 2V) - Work In Progress
  • Noobz347
  • Aug 30, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
1K
1996 - 2004 SN95 Mustang -General/Talk- Aug 30, 2025
Noobz347
R
93 LX 2.3 Trouble codes 53, 85, 21 help
  • Rickshaw302
  • Apr 15, 2025
  • 2.3L (N/A & Turbo) Tech
Replies
17
Views
784
2.3L (N/A & Turbo) Tech Apr 18, 2025
AeroCoupe
Engine 1990 LX 5.0L EFI Mustang Fuel Management Problems - HELP!
  • 5.0LXStanger
  • May 25, 2025
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
45
Views
2K
Fox 5.0 Mustang Tech Jul 11, 2025
5.0LXStanger
Resolved AOD Early Shift at low RPM Stock 91 5.0
  • Yyhoop
  • Nov 10, 2023
  • Fox 5.0 Mustang Tech
Replies
6
Views
1K
Fox 5.0 Mustang Tech Nov 13, 2023
90sickfox
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific 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?