rpm's stay high till stop?

3

331 stang91

Member

Oct 16, 2004

261

0

16

wisconsin

Jun 11, 2005

#1

• Jun 11, 2005

• #1

I'f im costing up to a stop light in neutral the rpm's stay a about 1200 till I come to a complete stop. Anyone know why?

 

super302

I'd do anything for free Bapples

May 29, 2004

2,878

1

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Davenport, IA

Jun 11, 2005

#2

• Jun 11, 2005

• #2

clean MAF, TB and IAC with throttle body cleaner ($3 at autozone)

good luck

 

super302

I'd do anything for free Bapples

May 29, 2004

2,878

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Davenport, IA

Jun 11, 2005

#3

• Jun 11, 2005

• #3

also, check vacuum leaks

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

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129

Jun 11, 2005

#4

• Jun 11, 2005

• #4

The VSS and puter keep your rolling idle high like that - it is normal.

 

super302

I'd do anything for free Bapples

May 29, 2004

2,878

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0

Davenport, IA

Jun 11, 2005

#5

• Jun 11, 2005

• #5

HISSIN50 said:

The VSS and puter keep your rolling idle high like that - it is normal.

Click to expand...

i didn't even read his post, i just glanced at the title

he's right, the idle will stay slightly higher than normal until you stop

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

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Jun 12, 2005

#6

• Jun 12, 2005

• #6

super302 said:

i didn't even read his post, i just glanced at the title

he's right, the idle will stay slightly higher than normal until you stop

Click to expand...

You are doing better than me - I can't read so I just guess.

 

super302

I'd do anything for free Bapples

May 29, 2004

2,878

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0

Davenport, IA

Jun 12, 2005

#7

• Jun 12, 2005

• #7

HISSIN50 said:

You are doing better than me - I can't read so I just guess.

Click to expand...

 

S

Stangtamer

New Member

May 30, 2005

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Jun 12, 2005

#8

• Jun 12, 2005

• #8

its normal...try cleaning it

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

34

129

Jun 12, 2005

#9

• Jun 12, 2005

• #9

Stangtamer said:

its normal...try cleaning it

Click to expand...

That is kind of contradictory, no?

 

A

Allforspeed

New Member

Oct 25, 2004

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Jun 12, 2005

#10

• Jun 12, 2005

• #10

totally normal bro, my car's sensors are immaculate and in perfect tune and it does this,

 

3

331 stang91

Member

Oct 16, 2004

261

0

16

wisconsin

Jun 12, 2005

#11

• Jun 12, 2005

• #11

I'm glad some of you decided to come in otherwise I would be cleaning
everything like the first few post said. Thanks thought eveytone I thought it was ok but thought I would ask at least some of you got a good laugh at my expense

 

Michael Yount

Mustang Master

Apr 10, 2002

9,039

6

79

Charlotte, NC

Jun 12, 2005

#12

• Jun 12, 2005

• #12

The ecu is programmed to do it - my wife's Bimmer does the same thing - idle speed is about 600 rpm; but it will hold at 900 rpm until you come to a stop, then it drops down.