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Author
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Topic: 93 mustang idle surge
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FOXX5.0
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Member # 9094
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posted
 
 
So it only dose it when my temp is to were it supposed to be and here n there the idle will jus drop while driving it it dosent turn off jus.the rpm will drop. Wen the car is stopped the rpm jus goes up n down I change the fuel pump but still nothin oh btw wen its cold it drives like nothing is wrong lmk cafords would it be a bad tps? I checked for vacuum leaks and none lmk thanks ![[patriot]](graemlins/patriot.gif)
Posts: 1554 | From: (~__~) | Registered: Apr 2009
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quickblue302
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Member # 7912
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posted
Check for vac leaks, tps, egr, iac....
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Eat rice it's good for you!
Posts: 624 | From: sac | Registered: Sep 2007
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93 twintrbo
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Member # 10475
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posted
Unplug both oxygen sensors ( upstream) and see if the idle surge goes away. I had a 5.0 explorer do the exact same thing. Was at 2 other shops and one ford dealership and they replaced just about everything but the problem. Turned out to be lazy upstream oxygen sensors.
Lawrence
Posts: 42 | From: Nor Cal | Registered: Nov 2010
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89foxstang
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Member # 5908
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posted
is it auto or stick? like said above i would check tps voltage recheck for vacuum leaks they can be a pain but sometimes can show up when heat is introduced, also check your coolant temp sensor make sure the car doesnt think the car is still cold or somthing also check the iat same reason, clean the maf (if applicable dont remember the year) i would def look at the temp sensors since it seems to be temp related. lmk
Posts: 825 | From: Davis | Registered: Aug 2005
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FOXX5.0
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Member # 9094
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posted
quote:
Originally posted by 89foxstang:
is it auto or stick? like said above i would check tps voltage recheck for vacuum leaks they can be a pain but sometimes can show up when heat is introduced, also check your coolant temp sensor make sure the car doesnt think the car is still cold or somthing also check the iat same reason, clean the maf (if applicable dont remember the year) i would def look at the temp sensors since it seems to be temp related. lmk
I changed the tps and cleaned the maf and the iac can find any leaks Ima try the coolent sensor and the oxygen. Sensors this is jus so annoying BTW its a 5 speed
[ August 10, 2011, 07:28 PM: Message edited by: FOXX5.0 ]
Posts: 1554 | From: (~__~) | Registered: Apr 2009
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Camara90
1%
Member # 134
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posted
Try cleaning and seperating your salt and pepper plugs.
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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Santos1986gt
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Member # 10513
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posted
I dont know if this will help but try checking the wiring of the sensors and ground for corrosion. Spray wd40 in sensors and put electrical grease in connectors. My cousin gt had the same problem and that helped.
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86gt minor upgrades(under construction)
2012 Focus SE (racing chip)?
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Xgotsome4me4
Posts: 271 | From: East Palo alto | Registered: Dec 2010
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racsirx
CAFords OG
Member # 1710
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posted
Did you finish putting it back to stock? I can look at it again if you did.
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88 Saleen #564
88 GT 331 NOVI2000
88 Coupe TURBO 9.75@142
95 Cobra R #75-SOLD
06 F250
13 BMW AH3
17 GT350 #5556
GOD'S NOT DEAD
Posts: 20750 | From: Concord & Pittsburg, CA | Registered: Aug 2002
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FOXX5.0
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Member # 9094
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posted
quote:
Originally posted by racsirx:
Did you finish putting it back to stock? I can look at it again if you did.
Lee yea I put it back to stock ill give u a call after work 2marrow to see if I can stop by
Posts: 1554 | From: (~__~) | Registered: Apr 2009
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FOXX5.0
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Member # 9094
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posted
Thanks guys for ur input Ima take it to lee if he finds out what is wrong with it ill be sure to put it up
Posts: 1554 | From: (~__~) | Registered: Apr 2009
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FOXX5.0
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Member # 9094
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posted
It was a bad distributer thanks agin lee for fixing that great guy after a long time finally fixed lol ![[Big Grin]](biggrin.gif)
Posts: 1554 | From: (~__~) | Registered: Apr 2009
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