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  • SN95 4.6L Mustang Tech

1200rpm fuel system shutter

  • Thread starter Thread starter v8carnut
  • Start date Start date Oct 30, 2005
V

v8carnut

New Member
Oct 30, 2005
7
0
0
Dallas TX
Oct 30, 2005
#1
  • Oct 30, 2005
  • #1
Ok I’m new to the forum, and I’m sure you all will be so nice when I ask the following question that’s probably been asked a 1000 times. So here it is.
I have an 01 Yellow GT 54k, auto (had to do the auto, wife can’t drive a standard.. notice how I didn’t say stick…) anyway I have the what I think is a fuel pressure problem at about 1200rpm. The car shutters if you let off the gas a little or accelerate a little at around 1200. I’ve heard others talk about this too, but not sure where to start. Ok bring on the slams… any of course and help or suggestions will be most appreciated…
 

40th GT

New Member
Apr 7, 2004
916
0
0
Lawrenceville, GA
Oct 30, 2005
#2
  • Oct 30, 2005
  • #2
This will be a good time to check your fuel filter/air filter if you haven't already changed them.
 

1LowGT

New Member
Sep 4, 2005
294
0
0
st louis mo.
Oct 30, 2005
#3
  • Oct 30, 2005
  • #3
also make sure you got clean trans fluid,stangs love clean tranny fluid
 
V

v8carnut

New Member
Oct 30, 2005
7
0
0
Dallas TX
Oct 30, 2005
#4
  • Oct 30, 2005
  • #4
Cool I’ll give it a shot. The cleaner is new, but the fuel filer a trans oil have some miles. I’m going do it all tomorrow.
 

1LowGT

New Member
Sep 4, 2005
294
0
0
st louis mo.
Oct 31, 2005
#5
  • Oct 31, 2005
  • #5
let me lmow how it turns out,
 
V

v8carnut

New Member
Oct 30, 2005
7
0
0
Dallas TX
Nov 10, 2005
#6
  • Nov 10, 2005
  • #6
I changed the trans fluid and replaced and filter last week. The trans shifts better (it was dirty) but it didn’t help much. Then today after work I fired it up and it would start on the first key. Hit it again, then one more time and it started. It ran rough like a loaded up carburetor. It cleared and ran better, but was missing some. Then half way home the Check Engine light came on. Throttle, censer, O2’s not sure. I’ll have to get the codes pulled. Sometimes it sucks having a computer drive car. The bent screwdriver and duct tape trick doesn’t work so well on electronics…
 
V

v8carnut

New Member
Oct 30, 2005
7
0
0
Dallas TX
Nov 11, 2005
#7
  • Nov 11, 2005
  • #7
I got the codes p0171 and p0172 Fuel Trim Malfunction. Looks like it could be several things. Has anyone run up on this one??
 
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