• Mustang Forums
  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 Specific Tech

Limp mode, dont know why

  • Thread starter Thread starter The_Joker
  • Start date Start date Jun 21, 2007
T

The_Joker

New Member
Mar 4, 2007
49
0
0
Jun 21, 2007
#1
  • Jun 21, 2007
  • #1
My car just went into limp mode and I dont know why. And every time i shift the transmission rattles like crazy when i push the clutch in. My car is also supercharged so that means no dealerships. What could this be? Is it still safe to drive my car?
 

Pliskin

New Member
Jul 27, 2004
109
0
0
Jun 21, 2007
#2
  • Jun 21, 2007
  • #2
Do you have an aftermarket throttle body? If so those cause it most of the time.
 
T

The_Joker

New Member
Mar 4, 2007
49
0
0
Jun 21, 2007
#3
  • Jun 21, 2007
  • #3
Pliskin said:
Do you have an aftermarket throttle body? If so those cause it most of the time.
Click to expand...

I know this sounds stupid but im not sure if the throttle body is stock or not.
 

bigcat

start with the upper hole, and if more traction is
May 1, 2005
3,015
1
79
7200 feet
Jun 21, 2007
#4
  • Jun 21, 2007
  • #4
look on the top of the TB. if it has the ford oval logo, then its stock.
 
T

The_Joker

New Member
Mar 4, 2007
49
0
0
Jun 21, 2007
#5
  • Jun 21, 2007
  • #5
bigcat said:
look on the top of the TB. if it has the ford oval logo, then its stock.
Click to expand...

Yea it has the logo
 

bigcat

start with the upper hole, and if more traction is
May 1, 2005
3,015
1
79
7200 feet
Jun 21, 2007
#6
  • Jun 21, 2007
  • #6
so you have a stock TB. there have been a few failures of them reported. i assume that you have a tuner and can pull the codes, since you are supercharged. pull the codes and post, please.
 
T

The_Joker

New Member
Mar 4, 2007
49
0
0
Jun 21, 2007
#7
  • Jun 21, 2007
  • #7
bigcat said:
so you have a stock TB. there have been a few failures of them reported. i assume that you have a tuner and can pull the codes, since you are supercharged. pull the codes and post, please.
Click to expand...

Thanx for the help, there is only one code and it is P0102. But there has been a change in my situation. I took it to the dealership and they wouldnt even look at the car because its supercharged. And on the way home my car overheated and spilled all of the coolant out onto the road, the temp guage read all the way over to hot and a bunch of steam came out of the hood. I had the car towed to my house and I still have no idea whats wrong with it.
 

bigcat

start with the upper hole, and if more traction is
May 1, 2005
3,015
1
79
7200 feet
Jun 22, 2007
#8
  • Jun 22, 2007
  • #8
P0102 OBD-II Trouble Code
Technical Description: Mass Air Flow (MAF) Circuit Low Input

What does that mean?Basically this means that there is a problem with the Mass Air Flow (MAF) sensor or circuit. A more technical description would be that the MAF circuit had lower than expected voltage (air flow).

Symptoms: You will likely not notice any serious drivability problems, although there may be symptoms such as a general decrease in power or sluggishness.

Causes: A code P0102 may mean that one or more of the following has happened:

The MAF may be disconnected, or a wiring connection may be bad
The MAF may be dirty or otherwise contaminated (Note: if you use a reusable oiled air filter, be careful not to apply too much oil or that can contaminate the MAF).
The MAF sensor may be faulty
The vehicle computer may be faulty (very rare)
Possible Solutions: The simplest thing to do is to reset the code and see if it comes back. Then start with the cheapest, easiest repair procedures:

Verify that the Mass Air Flow Sensor wiring is connected properly and that there are no broken / frayed wires.
Inspect for any air leaks near the MAF sensor.
Take the MAF out and clean it using a spray cleaner such as brake cleaner or electrical contact cleaner. Be gentle with the sensor.
Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information)
Replace the MAF sensor.​

thats a copy/paste of the basics...

start with this, then look into the overheating issue. they may or may not be related.
 

hags1

New Member
Aug 18, 2005
9
0
0
Jun 22, 2007
#9
  • Jun 22, 2007
  • #9
Who put the supercharger in? Can you get it to them and have them look it over?
Is it just installed or have you had it for awhile? Did they do the tuning also?
 
T

The_Joker

New Member
Mar 4, 2007
49
0
0
Jun 22, 2007
#10
  • Jun 22, 2007
  • #10
hags1 said:
Who put the supercharger in? Can you get it to them and have them look it over?
Is it just installed or have you had it for awhile? Did they do the tuning also?
Click to expand...

I have had the supercharger installed for about 3-4 months now and the shop that installed it does tuning also. I towed the car to them today and they are looking over it to figure out the problem. Thanx Bigcat for the help, I'm going to call the shop and tell them what you told me if they dont already know. Hope it helps.
 
You must log in or register to reply here.

Similar threads

G
Persistent P0102 and limp mode
  • Godless
  • Oct 30, 2025
  • 2005 - 2009 Specific Tech
Replies
2
Views
205
2005 - 2009 Specific Tech Nov 11, 2025
Godless
G
L
2005 gt mustang overheating sensor/failsafe mode
  • lyndenbouw
  • Mar 30, 2025
  • 2005 - 2014 S-197 Mustang -General/Talk-
Replies
2
Views
220
2005 - 2014 S-197 Mustang -General/Talk- Apr 12, 2025
Noobz347
S
07 v6 4.0 wiring issue .In desperate need of help.
  • Staycstang
  • Sep 19, 2025
  • 2005 - 2014 Specific V6 Tech
Replies
1
Views
312
2005 - 2014 Specific V6 Tech Sep 19, 2025
Noobz347
R
PCM problem
  • Rjchild9
  • Sep 24, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
162
1996 - 2004 SN95 Mustang -General/Talk- Sep 24, 2025
Rjchild9
R
D
Progress Thread Today in the shed........
  • Don7Up
  • May 5, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
20
Views
680
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 6, 2026
Don7Up
D
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 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?