Weird idle Problem

1

1BAD89GT

New Member

Jan 2, 2004

87

0

0

Oklahoma

Feb 23, 2004

#1

• Feb 23, 2004

• #1

Weird idle problem just started friday night when pulling up to a light and just leaving in 1st gear with clutch pressed in idle wont come down below 1300rpms,But if i pull the stick into neutral and let off clutch pedal it will Idle normally at 900rpms.first time ive seen this problem driving me nuts.

 

1

1hot5.0

Founding Member

Sep 6, 2002

1,615

0

0

Surprise, Arizona

Feb 23, 2004

#2

• Feb 23, 2004

• #2

Did you check your tps voltage? It is wierd that the idle comes down in neutral though.

 

1

1BAD89GT

New Member

Jan 2, 2004

87

0

0

Oklahoma

Feb 23, 2004

#3

• Feb 23, 2004

• #3

1hot5.0 said:

Did you check your tps voltage? It is wierd that the idle comes down in neutral though.

Click to expand...

TPS is one thing i havent checked maybe it some how got out of adjustment?I already cleaned TB MAF and IAC still the same idle.

 

1

1hot5.0

Founding Member

Sep 6, 2002

1,615

0

0

Surprise, Arizona

Feb 23, 2004

#4

• Feb 23, 2004

• #4

Yea, I would check your tps voltage. A friend of mine (redhot91gt's) car does this also (it is a 5 speed). In addition, mine would hang at 1,200 rpm i neutral and then come down to normal idle rpm.

Let me know what happens. Good luck.

 

1

1BAD89GT

New Member

Jan 2, 2004

87

0

0

Oklahoma

Feb 23, 2004

#5

• Feb 23, 2004

• #5

1hot5.0 said:

Yea, I would check your tps voltage. A friend of mine (redhot91gt's) car does this also (it is a 5 speed). In addition, mine would hang at 1,200 rpm i neutral and then come down to normal idle rpm.

Let me know what happens. Good luck.

Click to expand...

Should be at .98 Right?

 

5.0LX90

New Member

Dec 30, 2003

15

0

0

Tampa, Florida

Feb 23, 2004

#6

• Feb 23, 2004

• #6

1BAD89GT said:

Should be at .98 Right?

Click to expand...

Yeah thats where it should be while at idle.

 

cztt

New Member

Jun 23, 2003

53

0

0

Feb 23, 2004

#7

• Feb 23, 2004

• #7

Egr Sensor

1BAD89GT said:

Weird idle problem just started friday night when pulling up to a light and just leaving in 1st gear with clutch pressed in idle wont come down below 1300rpms,But if i pull the stick into neutral and let off clutch pedal it will Idle normally at 900rpms.first time ive seen this problem driving me nuts.

Click to expand...

I had the idle bug for a while. It was bad every other redlight or slow down it was idling up and down. So, I replaced and set the tps to .97 to .99. I cleaned the IAC. I replaced the egr sensor. I cleaned he EGR valve with wd40 or some other cleaner. (worked the egr back and forth with screwdriver). It fixed it by about 90 to 95%.