Anyone have this idle problem?

SlowStang2 · 10-08-2001, 01:00 AM

When my car gets to about the R in NORMAL range, the engine has a hard time idling. I'll turn it on, the RPMS will shoot up to 1800 then back down then back up and then it swings down, but before the RPMS come back up again it stalls. Only remedy to keep my car on is to rev it high about 2 times, then the RPMs will drop normally to idle without doing the "seesaw" effect. Jeez, its like 1 problem after another with this car..

------------------
94' Stang GT Convertible --Cobra upper&lower, GT-40Y Turbo Swirl aluminum heads, Mac cold air w/K&N, BBK equal length shorties, BBK offroad H-pipe, American Thunder cat-back, BBK T/B 65mm, 24lb injectors, Pro-77mm MAM, pulleys, aluminum driveshaft, 3.55s, Steeda Tri-Ax shifter, adjustable fuel regulator, Steeda strut tower and subframes 14.2@102 MPH on G-tech;?MPH at track. I know, I know I am working on it. Now I have FRPP 1.7 RRs and new lifters, yes the ticking is gone!!!

95mustanggt · 10-08-2001, 08:43 AM

No Codes? Do a KOEO and KOER test.
Then give the codes, if any.

------------------
1995 Mustang GT

SlowStang2 · 10-08-2001, 01:48 PM

Where can I get these testers and how much are they?

------------------
94' Stang GT Convertible --Cobra upper&lower, GT-40Y Turbo Swirl aluminum heads, Mac cold air w/K&N, BBK equal length shorties, BBK offroad H-pipe, American Thunder cat-back, BBK T/B 65mm, 24lb injectors, Pro-77mm MAM, pulleys, aluminum driveshaft, 3.55s, Steeda Tri-Ax shifter, adjustable fuel regulator, Steeda strut tower and subframes 14.2@102 MPH on G-tech;?MPH at track. I know, I know I am working on it. Now I have FRPP 1.7 RRs and new lifters, yes the ticking is gone!!!

90dpscoupe · 10-08-2001, 03:54 PM

get tester at autozone, or any other local parts house, also try cleaning the iab and throttlebody

10-08-2001, 04:47 PM

I've had other idle problems in the past, but nor like yours. I never get above the M. Sorry.

------------------
'90 LX 5.0;12K original miles;FMS 3.55 gears; March pulleys;Edelbrock Performer Heads;BBK 1 5/8" equal length shorties;MSD 6AL ignition w/ blaster 2 coil;FMS E303 cam;Pro-M 75mm MAF;BBK 70mm TB; Eibach drag-launch spring kit;Southside weld-on subs;9" K&N cone filter charger;Hurst shifter;Cervini 3" turbo hood;A/C delete;gutted cats;2 chamber Flomasters;Corbeau racing seats;FMS 30# injectors;JMS custom chip;Holley 190lb fp;TFS track heat intake (12.299 @ 113mph w/ a 1.78 60')
....soon to be b

95mustanggt · 10-08-2001, 05:15 PM

Quote:

Originally posted by SlowStang2:
Where can I get these testers and how much are they?

You don't need a tester for the 94 EEC IV computer. You just need to find the diagnostic adatper located behind the front passenger side fender. Remove the cover. You will then have 2 connectors. My secondary is grey, and the main one is black.

Connect the pins as shown with a jumper wire (make sure the car is off). I made my jumper wire from solid copper wire and modified some forked connectors to fit nicely in the pins.

Now, with the jumper wire connecting the 2 pins as shown, get in the car and turn it to "on". Do not start the car.

The fan should rev up and then your check engine light will flash. the code 123 will flash as: flash (2 second pause), flash flash (2 second pause), flash flash flash.

Record all the codes. A code 111 means everything is OK and is also used as a seporator code.

Once the car stops flashing codes you are done. That was a KOEO test (Key On, Engine Off).

Now you have to do the KOER test. Connect the jumper wire, and start the car, Let it idle on its own. It should idle up for a minute and then idle down. It will then start flsahing codes like the first test.

You can repeat the tests often to make sure you have all the codes. Write them down in order that you see them and post them here.

Or, if you want you can buy a code reader. I didn't as I want to but as much money in the car as possible to make it go fast

.

------------------
1995 Mustang GT

jimberg · 10-08-2001, 05:42 PM

Here's what it looks like for real.

------------------
351W 89 Mustang GT Convertible

[This message has been edited by jimberg (edited 10-08-2001).]

95mustanggt · 10-09-2001, 09:30 AM

Quote:

Originally posted by jimberg:
Here's what it looks like for real.

Oh sure, show a fancy picture and make me look bad

jim's picture is a little *cough* better *cough* than mine, so use his, but with both pictures you should get the idea.

------------------
1995 Mustang GT

Robert_5_liter · 10-09-2001, 11:28 AM

Get a custom chip burned i had that problem after few mods

------------------
95 Mustang gt tfs stage1 cam,Trickflow street intake,MSD distributor,MSD Coil,Ram air,Underdrives,BBK shorties,BBK off road H pipe,Flowmaster 2 chamber exhaust,Hypertech chip,4.10 gears.Status,still hates his car
Best time 14.19
Best MPH 96.8
Best 60' 1.99
spinning 1 gear away going through traps in 4th at 5500 RPM

10-08-2001, 01:00 AM	#1
SlowStang2 Registered Member Join Date: May 2001 Location: Stuart, FL, US Posts: 147	Anyone have this idle problem? When my car gets to about the R in NORMAL range, the engine has a hard time idling. I'll turn it on, the RPMS will shoot up to 1800 then back down then back up and then it swings down, but before the RPMS come back up again it stalls. Only remedy to keep my car on is to rev it high about 2 times, then the RPMs will drop normally to idle without doing the "seesaw" effect. Jeez, its like 1 problem after another with this car.. ------------------ 94' Stang GT Convertible --Cobra upper&lower, GT-40Y Turbo Swirl aluminum heads, Mac cold air w/K&N, BBK equal length shorties, BBK offroad H-pipe, American Thunder cat-back, BBK T/B 65mm, 24lb injectors, Pro-77mm MAM, pulleys, aluminum driveshaft, 3.55s, Steeda Tri-Ax shifter, adjustable fuel regulator, Steeda strut tower and subframes 14.2@102 MPH on G-tech;?MPH at track. I know, I know I am working on it. Now I have FRPP 1.7 RRs and new lifters, yes the ticking is gone!!!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Idle Problem	skrewhead	Modular Madness	1	07-24-2004 10:04 PM
Idle problem and jerking?	69fastback	Windsor Power	10	01-11-2003 05:58 PM
Idle problem 88GT Speed Density	chuck88	Windsor Power	9	07-07-2002 09:16 AM
347 Big Time Idle problem	89FHPLX	Windsor Power	2	01-15-2002 12:02 PM
Different idle problem?	Scappoose	Windsor Power	0	11-28-2001 05:16 PM

10-08-2001, 08:43 AM	#2
95mustanggt Registered Member Join Date: May 2000 Location: Kamloops, BC Posts: 2,875	No Codes? Do a KOEO and KOER test. Then give the codes, if any. ------------------ 1995 Mustang GT

10-08-2001, 01:48 PM	#3
SlowStang2 Registered Member Join Date: May 2001 Location: Stuart, FL, US Posts: 147	Where can I get these testers and how much are they? ------------------ 94' Stang GT Convertible --Cobra upper&lower, GT-40Y Turbo Swirl aluminum heads, Mac cold air w/K&N, BBK equal length shorties, BBK offroad H-pipe, American Thunder cat-back, BBK T/B 65mm, 24lb injectors, Pro-77mm MAM, pulleys, aluminum driveshaft, 3.55s, Steeda Tri-Ax shifter, adjustable fuel regulator, Steeda strut tower and subframes 14.2@102 MPH on G-tech;?MPH at track. I know, I know I am working on it. Now I have FRPP 1.7 RRs and new lifters, yes the ticking is gone!!!

10-08-2001, 03:54 PM	#4
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	get tester at autozone, or any other local parts house, also try cleaning the iab and throttlebody

10-08-2001, 04:47 PM	#5
bada$$lx Guest Posts: n/a	I've had other idle problems in the past, but nor like yours. I never get above the M. Sorry. ------------------ '90 LX 5.0;12K original miles;FMS 3.55 gears; March pulleys;Edelbrock Performer Heads;BBK 1 5/8" equal length shorties;MSD 6AL ignition w/ blaster 2 coil;FMS E303 cam;Pro-M 75mm MAF;BBK 70mm TB; Eibach drag-launch spring kit;Southside weld-on subs;9" K&N cone filter charger;Hurst shifter;Cervini 3" turbo hood;A/C delete;gutted cats;2 chamber Flomasters;Corbeau racing seats;FMS 30# injectors;JMS custom chip;Holley 190lb fp;TFS track heat intake (12.299 @ 113mph w/ a 1.78 60') ....soon to be b

10-08-2001, 05:42 PM	#7
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	Here's what it looks like for real. ------------------ 351W 89 Mustang GT Convertible [This message has been edited by jimberg (edited 10-08-2001).]

10-09-2001, 11:28 AM	#9
Robert_5_liter Registered Member Join Date: Mar 2001 Location: Ohio, lorain usa Posts: 32	Get a custom chip burned i had that problem after few mods ------------------ 95 Mustang gt tfs stage1 cam,Trickflow street intake,MSD distributor,MSD Coil,Ram air,Underdrives,BBK shorties,BBK off road H pipe,Flowmaster 2 chamber exhaust,Hypertech chip,4.10 gears.Status,still hates his car Best time 14.19 Best MPH 96.8 Best 60' 1.99 spinning 1 gear away going through traps in 4th at 5500 RPM