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

please help cms stage one cams rpms always drop low and almost die at a stop!!!

  • Thread starter Thread starter rispoli_23
  • Start date Start date Apr 30, 2010

rispoli_23

Member
Jul 7, 2008
182
0
16
Apr 30, 2010
#1
  • Apr 30, 2010
  • #1
guys i have had my cams for 2 years now and i have fought and fought with my idle ... when i come to a stop or push the clutch in my rpms drop really low it almost dies and sometimes does and then pops right back up ... i have went through 3 iac valves in 2 years starting to think thats not my problem any suggestions ... i cant find any vac leaks and i have replaced my pcv valve also and checked my idle screw on the t/b ... please help its my daily driver and between this and other proplems im having im about to run my car off a cliff ..
 
N

ninjastang125

New Member
Nov 1, 2008
591
2
0
maryland
Apr 30, 2010
#2
  • Apr 30, 2010
  • #2
You need a tune.
 

rispoli_23

Member
Jul 7, 2008
182
0
16
Apr 30, 2010
#3
  • Apr 30, 2010
  • #3
thats what everyone says but i have had 2 diferent tune companies send me a tune and then 3 weeks ago i finally had it dyno tuned and still having the same issue , i will say my tuner is looking at it again on sunday because im also gettin p0602 and p0300 but i got those codes before with the last tunes and even when they fixed the tune i still had this problem ugghhhhh thanks for the reply man anything else u think it can be
 
N

ninjastang125

New Member
Nov 1, 2008
591
2
0
maryland
Apr 30, 2010
#4
  • Apr 30, 2010
  • #4
I had my tuner look at mine and he just had to go in and mess with the idle settings and something with the mass air was right and the the o2s were right and mine was fine I did bump the idle to 750 in my xcal and I rarely had the problem. If he would have dynoed it he would have been right on with it.
 

rispoli_23

Member
Jul 7, 2008
182
0
16
Apr 30, 2010
#5
  • Apr 30, 2010
  • #5
thats what i was thinkin but something went wrong with his tune after 3 days the check engine light came on and i started having all these problems again and the exhaust is realy stong smelling
 

navarro98gt

Member
May 15, 2003
213
3
16
chicago, IL
Apr 30, 2010
#6
  • Apr 30, 2010
  • #6
Its the tune. Take it to reputable tuner and he’ll work the bugs out. I went to three tuners before I found one that knew what he was doing.
 

rispoli_23

Member
Jul 7, 2008
182
0
16
Apr 30, 2010
#7
  • Apr 30, 2010
  • #7
thats what im thinking thanks man
 
You must log in or register to reply here.

Similar threads

S
idles perfect then jolts and cuts out when put into Reverse or Drive.
  • shanesstangs
  • Mar 12, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
240
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 27, 2026
General karthief
K
Engine 2000 Mustang GT - Fuel issue post-blown spark plug repair
  • kenster1092
  • Feb 26, 2026
  • SN95 4.6L Mustang Tech
Replies
4
Views
353
SN95 4.6L Mustang Tech Mar 10, 2026
kenster1092
K
I
Engine Insane fuel trims +25% LTFT Bank 1, -16% LTFT Bank 2
  • imw_stl
  • Aug 31, 2025
  • SN95 4.6L Mustang Tech
Replies
2
Views
312
SN95 4.6L Mustang Tech Sep 19, 2025
Mustang5L5
B
'03 GT Fuel Pump/Pressure/Delivery Issue
  • Brodach
  • Oct 21, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
916
SN95 4.6L Mustang Tech Oct 31, 2025
gkomo
L
Drivetrain 2000 GT High Idle - Pulling Out Hair - Help
  • lleonard1185
  • Jan 18, 2025
  • SN95 4.6L Mustang Tech
Replies
9
Views
602
SN95 4.6L Mustang Tech Jun 4, 2025
Leo090
L
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?