Idle Issue

dothedew1654 · January 27th, 2008, 10:59 PM

I've been having idle issues for a while now. I replaced my IAC and it has improved a little. But if I leave the IAC plugged in the rpms will hang for awhile and then drop down. And when I go to shift instead of the rpms dropping they will rise. But if its unplugged the rpms will drop like their supposed to. At lights tho, the idle will wonder all over the place and in the morning it will idle really low. Any ideas on what to try next? I heard i could possibly clean my MAF. How do i do this?

Thanks

Iwannagofast · January 27th, 2008, 11:14 PM

that sounds like a vacuum leak to me

dothedew1654 · January 27th, 2008, 11:20 PM

I've already checked for vacuum leaks. I'm leaning towards it being the MAF. I might try cleaning it. Are there any directions for cleaning it? with pictures and stuff?

boostedzx3 · January 27th, 2008, 11:30 PM

Do you guys have throttle position sensors on these things (TPS)? If so that could be the culprit and would be cheaper then the MAF. Also just get some CRC electrical parts cleaner to clean the MAF. Just dont hold the can too close.

dothedew1654 · January 27th, 2008, 11:32 PM

I don't know what a TPS is sorry... If you could please explain?

shurb125 · January 27th, 2008, 11:37 PM

TPS stands for throttle position sensor.

boostedzx3 · January 27th, 2008, 11:37 PM

It's a throttle position sensor and it's usually found right around, probably on your throttle body, thats if you have one. I forget exactly how it works but I beleive it has something to do with the position of the butterfly. It's usually a very little peice with a plug and held on by 2 bolts, smaller then your IAC. It's a common thing to fail on a car like my focus, usually every 12k.

Thats also another thing to check, make sure the butterfly is'nt being held slightly open by something like build up. Thats not a bad thing to take off and spray down with some carb cleaner, it could be hanging up somewhere.

January 27th, 2008, 10:59 PM	#1
dothedew1654 Regular 1995 Mustang GTS Join Date: Sep 2007 Location: San Diego Posts: 74 iTrader: 0 reviews	Idle Issue I've been having idle issues for a while now. I replaced my IAC and it has improved a little. But if I leave the IAC plugged in the rpms will hang for awhile and then drop down. And when I go to shift instead of the rpms dropping they will rise. But if its unplugged the rpms will drop like their supposed to. At lights tho, the idle will wonder all over the place and in the morning it will idle really low. Any ideas on what to try next? I heard i could possibly clean my MAF. How do i do this? Thanks __________________ 95 Mustang GTS, 5 Speed, MAC O/R H Pipe, MAC Catback, BBK CAI, Eibach Lowering Springs, Steeda Tri-Ax, Black Bullit 17x9 with 255/40/17 BFG t/a kdws.

January 27th, 2008, 11:20 PM	#3
dothedew1654 Regular 1995 Mustang GTS Join Date: Sep 2007 Location: San Diego Posts: 74 iTrader: 0 reviews	I've already checked for vacuum leaks. I'm leaning towards it being the MAF. I might try cleaning it. Are there any directions for cleaning it? with pictures and stuff? __________________ 95 Mustang GTS, 5 Speed, MAC O/R H Pipe, MAC Catback, BBK CAI, Eibach Lowering Springs, Steeda Tri-Ax, Black Bullit 17x9 with 255/40/17 BFG t/a kdws.

January 27th, 2008, 11:30 PM	#4
boostedzx3 Regular 1969 2 door coupe grande Join Date: Dec 2007 Location: Enola, Pennsylvania Posts: 157 iTrader: 0 reviews	Do you guys have throttle position sensors on these things (TPS)? If so that could be the culprit and would be cheaper then the MAF. Also just get some CRC electrical parts cleaner to clean the MAF. Just dont hold the can too close. __________________ Check out my 351 4 barrel swap in my 69 coupe here http://www.moddedmustangs.com/forums...-351-swap.html Yes, I am the moon master

January 27th, 2008, 11:32 PM	#5
dothedew1654 Regular 1995 Mustang GTS Join Date: Sep 2007 Location: San Diego Posts: 74 iTrader: 0 reviews	I don't know what a TPS is sorry... If you could please explain? __________________ 95 Mustang GTS, 5 Speed, MAC O/R H Pipe, MAC Catback, BBK CAI, Eibach Lowering Springs, Steeda Tri-Ax, Black Bullit 17x9 with 255/40/17 BFG t/a kdws.

January 27th, 2008, 11:37 PM	#6
shurb125 Regular 1993 Mustang LX Vert Join Date: Nov 2006 Location: South Carolina Posts: 437 iTrader: 0 reviews	TPS stands for throttle position sensor. __________________ 306 TFS heads stage 3 port & polished, TFS stage 2 cam, TFS Track heat intake, DSS pistons, 24# injectors, 76mm MAF, 70mm BBK/Edelbrock TB and spacer

January 27th, 2008, 11:14 PM	#2
Iwannagofast Hardcore Enthusiast 1990 Mustang GT havent gone since gears Join Date: Feb 2007 Location: Arkansas Posts: 2,940 iTrader: 0 reviews	that sounds like a vacuum leak to me

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

Threads Similar to: Idle Issue
Thread	Thread Starter	Forum	Replies	Last Post
Wierd Idle Issue	68 dlxcoupe	96-98	6	November 19th, 2007 10:45 AM
High Idle Issue	gsjohnson	99-04	6	November 17th, 2007 02:47 PM
idle issue	UNOH98stang	96-98	8	August 30th, 2007 02:56 PM
Warm Idle Issue	cobraetti	5.0 Mustangs	8	November 14th, 2006 07:29 PM
Idle Problems Code 1506, Idle Overspeed Error	jagstang96	96-98	3	August 29th, 2006 04:11 AM

All times are GMT -4. The time now is 06:44 AM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.