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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Engine IDLE ISSUES

  • Thread starter Thread starter Prabh114
  • Start date Start date Mar 29, 2021
P

Prabh114

Member
May 28, 2020
13
3
13
Vancouver CANADA
Mar 29, 2021
#1
  • Mar 29, 2021
  • #1
I swapped my 2.3 to a 5.0 and have a few issues currently
Problem:
High idle/surge causing the engine to shake badly. The whole car shakes. Idles 1000-1500 rpms intermittently.
Solutions:
Smoked tested for vacuum leak and upper intake gasket was leaking. Replaced gasket and smoke tested it again. No vacuum leaks now. Timing is set at 12. TPS is at .76 and won’t go over that.

Heres a link too the video I’ve made.
View: https://youtu.be/AknKXvkkN-4


Everything done to the car:
Da1 computer
88 car, 88 harness, 92 motor
Stock motor
Speed density
Egr deleted
Smog deleted
No A/C


questions i have:
Is the 2.3 ignition coil the same as a 5.0?
Any other steps i can take?
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
27,994
10,621
213
polk county florida
Mar 30, 2021
#2
  • Mar 30, 2021
  • #2
What is the firing order?
What is the tps voltage at wide open throttle? ( not related to ill running issues)
Where did the engine come from?
 

Boostedpimp

20+ Year Stangneter
May 8, 2003
1,451
493
154
NJ
Mar 30, 2021
#3
  • Mar 30, 2021
  • #3
How is the engine mounts?
Look over the harmonic balancer?
Did you try a base idle reset?
 

nickyb

I gotta say i never painted my nuts, Never Ever
15 Year Member
Apr 3, 2009
2,989
1,633
153
nevada
Mar 30, 2021
#4
  • Mar 30, 2021
  • #4
You can ream out the holes in the tps it'll move more and you can get it closer to .98. Doesn't look like too much shaking to me? Once you get the tps close then you can base idle it to where you like it.I know 4 banger coil is not the same but a new one is cheap enough( rockauto),amazon....about $20 usdollars.God luck and post results.
 
Last edited: Mar 30, 2021
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