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

still not running right.....

  • Thread starter Thread starter tsoccer3299
  • Start date Start date Oct 25, 2005

tsoccer3299

Member
Mar 21, 2004
255
0
16
Tacoma
Oct 25, 2005
#1
  • Oct 25, 2005
  • #1
Ok well about a month ago my car decided it would take forever before firing up when its cold. When its hot it starts right away but when cold sometimes it will fire right up but sometimes i will sit there and crank it forever. Heres what ive done, cleaned IAT, IAC, and MAF sensors, also I replaced my ECT sensor, and put in a new fuel pump. Since all of this now the car when it fires up and is cold I think it is in hot idle as the rpms stay around 600 and occasionally it will surge. It never used to idle this low when cold and hadnt done the surging before. This all goes away after a few minutes of it running. Anybody know what I should try and tackle next? Thanks again
 

loud 95

New Member
May 29, 2003
562
0
0
Milwaukie, OR
Oct 26, 2005
#2
  • Oct 26, 2005
  • #2
tsoccer3299 said:
Ok well about a month ago my car decided it would take forever before firing up when its cold. When its hot it starts right away but when cold sometimes it will fire right up but sometimes i will sit there and crank it forever. Heres what ive done, cleaned IAT, IAC, and MAF sensors, also I replaced my ECT sensor, and put in a new fuel pump. Since all of this now the car when it fires up and is cold I think it is in hot idle as the rpms stay around 600 and occasionally it will surge. It never used to idle this low when cold and hadnt done the surging before. This all goes away after a few minutes of it running. Anybody know what I should try and tackle next? Thanks again
Click to expand...

Have you checked your cap and rotor?
 

tsoccer3299

Member
Mar 21, 2004
255
0
16
Tacoma
Oct 26, 2005
#3
  • Oct 26, 2005
  • #3
replaced the rotor awhile ago, i'll check it again. a couple of times when ive started it up cold it sounds like its running on one cylinder so i just shut it down and fire it up again. thanks for the help
 

mo_dingo

20+ Year Stangneter
Aug 26, 2003
3,031
2
58
Tucson, AZ
Oct 26, 2005
#4
  • Oct 26, 2005
  • #4
Did you check your fuel pressure and vacuum?
 

tsoccer3299

Member
Mar 21, 2004
255
0
16
Tacoma
Oct 26, 2005
#5
  • Oct 26, 2005
  • #5
nope, how and where can i check my vacuum? i have to go out and buy a fuel pressure gauge right?
 

loud 95

New Member
May 29, 2003
562
0
0
Milwaukie, OR
Oct 26, 2005
#6
  • Oct 26, 2005
  • #6
tsoccer3299 said:
nope, how and where can i check my vacuum? i have to go out and buy a fuel pressure gauge right?
Click to expand...
The gauge I mounted on my Aeromotive AFPR was about $10 from summit. You can get a cheap vacuum gauge at you local autoparts store for less than $20. You can test the vacuum on any vacuum hoze if you have a T fitting. That is probably 10 cents at your local autoparts store as well. Then, you can purchase a 5 cent plug for the end of the t fitting. That way, it will be easy to check vacuum in the future. I plumbed mine in on one of the several vacuum lines on the upper intake manifold. If you come to starbucks this weekend, I'll show you the specifics.
 

loud 95

New Member
May 29, 2003
562
0
0
Milwaukie, OR
Oct 26, 2005
#7
  • Oct 26, 2005
  • #7
Oh yeah, and don't buy one of the crappy fuel pressure gauges that the automotive stores sell- the o-rings used in those are not fuel resistant! Go figure. You'll use it about 10 to 15 times before the valve assembly peters out on you. I know from experience. Get a quality gauge to mount on your regulator, or on the shrader valve. I didn't see an adjustabel fuel pressure regulator in your sig, so if you don't have one, order the bbk gauge/fitting combo from summit($60). This will allow you to mount the gauge on the shrader valve. That way, you will be able to keep an eye on that fuel pressure, to make sure you have what you need at the rail. I can show you more about this at starbucks, if you are so inclined.
 

tsoccer3299

Member
Mar 21, 2004
255
0
16
Tacoma
Oct 27, 2005
#8
  • Oct 27, 2005
  • #8
yeah that would be awesome if you could show me some of that at starbucks this weekend, i'll definately be there. thanks
 

tsoccer3299

Member
Mar 21, 2004
255
0
16
Tacoma
Oct 27, 2005
#9
  • Oct 27, 2005
  • #9
ttt anyone else have any ideas?
 
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