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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Idle Problems(TFS Stage 1)

  • Thread starter Thread starter 88-GT
  • Start date Start date Mar 30, 2008

88-GT

Member
Oct 8, 2004
183
2
18
Mar 30, 2008
#1
  • Mar 30, 2008
  • #1
Well low and behold I finally finish the new motor and I cant get it to idle, but not in the general sence that others have expierienced. I have the base timing set at 16 degrees, and seems to be where the car likes it the most. If I try setting the base idle with the IAC disconnected it idles fine, I can rev it it comes back down, everything seems fine, I try to drive it and if I stall it all goes to ****. When I try to start it, it will start right away then on the downstroke die, everytime it surges I have to stab the gas to keep it running.

It seems like unless the idle is brought down gently via the throttle plate adjusting screw, it wont idle. Even beyond stalling, even off on with the key brings similar results.

Any thoughts? My next step is going to be to try a new IAC, and hope for the best. Then maybe to an IAC adjuster, either way, this sucks.

Mill:
TFS top end kit
Probe 9.3:1 srs pistons
BBK 70mm TB and EGR(loud as hell)
C&L 73mm


Thanks in advance.
 

BK_CAULEY

it's built for speed not longevity, woman
Dec 26, 2006
0
10
49
Thomasville, ga
Mar 30, 2008
#2
  • Mar 30, 2008
  • #2
zero the throttle screw out and install a new i.a.c if it still does turn the screw until you get it just right.

or you can cut a small piece out of the iac gasket in the middle to let air in. not much just a little. and if need be trim more.

these are methods i have used, so they are not hard core tested just some i have found to work fo rme. not neccisarilly the correct fix.
 

88mouse

New Member
Apr 18, 2007
630
0
0
Mooresville nc
Mar 30, 2008
#3
  • Mar 30, 2008
  • #3
I took the IAC off and put a block off plate where it goes and turned the throttle screw in to set the idle.

Not the right way but it works just fine.
 

stang_hp

Member
Feb 25, 2007
62
0
6
cartersville Ga.
Mar 30, 2008
#4
  • Mar 30, 2008
  • #4
I had the same problem, turned out that I had to run a ground wire from the fire wall to the tps.
 

BlownFiveLiter

have car, will race....wait, it doesn't run
15 Year Member
Nov 29, 1999
3,133
18
108
Chicagoland
Mar 30, 2008
#5
  • Mar 30, 2008
  • #5
Surging Idle Checklist

Click that link and follow the steps in it. You should be able to keep that thing idling with the TFS cam. My 95 doesn't surge with it, and it's much less mod friendly than the A9* series EEC in the Fox.
 
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