• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Idle problems

  • Thread starter Thread starter dksheehan
  • Start date Start date May 20, 2004
D

dksheehan

New Member
Apr 12, 2004
41
0
0
May 20, 2004
#1
  • May 20, 2004
  • #1
Guys, I installed an Accufab plenum to my 4.6 96gt and everything was good.
I just installed a C&L Trueflow Power Pipe and now the car is idling roughly.
The Power Pipe with a bitch to get under the stock strut tower brace, but I was able to get it in. It did't fit flush with the throttle body, but I used the silicone hoses to tie the gaps. Is the Power Pipe to sit flush with the throttle body?
My question is why could it be idling rough and what can I do to troubleshoot the problem?
I didn't disconnect the battery before the install, could that be the problem?
Thanks in advance

Dan
 

Blev

New Member
Aug 17, 2003
1,295
1
0
So. Cal. V-Town
May 20, 2004
#2
  • May 20, 2004
  • #2
dksheehan said:
Guys, I installed an Accufab plenum to my 4.6 96gt and everything was good.
I just installed a C&L Trueflow Power Pipe and now the car is idling roughly.
The Power Pipe with a bitch to get under the stock strut tower brace, but I was able to get it in. It did't fit flush with the throttle body, but I used the silicone hoses to tie the gaps. Is the Power Pipe to sit flush with the throttle body?
My question is why could it be idling rough and what can I do to troubleshoot the problem?
I didn't disconnect the battery before the install, could that be the problem?
Thanks in advance

Dan
Click to expand...
You need to disconect the battery man. After you do that let it idle for about 5 min. Than get it on the freeway or a long road where you can cruise it at a steady speed. This helps the computer read everything all over again so it can adjust itself. The inlet pipe should fit flush, but as long as there is no leak, it should run rough. Did you make sure you pluged in the MAF and the other sensor that goes into the inlet pipe? Did you also check all of your connections at the Plenum? plus the ground on top of the EGR?
 
D

dksheehan

New Member
Apr 12, 2004
41
0
0
May 21, 2004
#3
  • May 21, 2004
  • #3
I made sure that I plugged in the sensor into the inlet pipe. What is the ground on the EGR? Are you sure that if it didn't fit flush to the TB it will be ok? I'll disconnect the battery and give it a try. I do have a Superchip, will that make a difference?
TIA

Dan
 

JonJon

Founding Member
Aug 16, 2002
4,801
1
68
back in Marylands
May 21, 2004
#4
  • May 21, 2004
  • #4
Is it like this problem I had/have?
http://forums.stangnet.com/showthread.php?t=450426
 
D

dksheehan

New Member
Apr 12, 2004
41
0
0
May 21, 2004
#5
  • May 21, 2004
  • #5
can anyone else help?
 
You must log in or register to reply here.

Similar threads

L
Engine 85 GT Excessive Idle
  • lutzkecj
  • Sep 18, 2026
  • Fox 5.0 Mustang Tech
Replies
5
Views
325
Fox 5.0 Mustang Tech Sep 21, 2026
86HO5.0
8
A
Rough idle - cylinder 1 and 6 misfire HELP
  • austindavies935
  • Jul 24, 2025
  • SN95 4.6L Mustang Tech
Replies
12
Views
861
SN95 4.6L Mustang Tech Jul 24, 2025
gkomo
F
Fox 1990 Mustang GT 5.0 A9L – Engine suddenly shuts off but immediately restarts when key turned
  • FishermansFriend
  • Aug 9, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
16
Views
652
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 30, 2026
General karthief
Fox Fuel Pump Issues After Replacement/Upgrade
  • Ryu
  • Jun 23, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
24
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Sep 13, 2026
Ryu
Engine Surging idle on start-up
  • keel
  • Aug 11, 2025
  • Fox 5.0 Mustang Tech
Replies
16
Views
1K
Fox 5.0 Mustang Tech Oct 31, 2025
keel
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang 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?