car keeps running

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stangGT87

New Member

Apr 13, 2005

5

0

0

Aurora CO

Apr 21, 2006

#1

• Apr 21, 2006

• #1

So i turn my car off and it just keeps running for a few seconds and i dont know y it just started a few days ago. Also when accelerate in gear it kinda studdars a pops a little bit a little bit between like 1500- 4000. and it feels like there is no power but it only does this when its in gear. not when i just rev it up. Please help.

 

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stangGT87

New Member

Apr 13, 2005

5

0

0

Aurora CO

Apr 21, 2006

#2

• Apr 21, 2006

• #2

mods
87 mass air Stang with GT 40 uper and lowers, Long tubes into Bassani X pipe, MSD 6AL, Blaster coil, e 303 cam, 1.60:1 roller rocker arms, Eletric fan, 140 amp alternator upgrade, AC delete.

 

HISSIN50

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

15 Year Member

Nov 29, 1999

31,179

33

129

Apr 21, 2006

#3

• Apr 21, 2006

• #3

I would start with a thorough code yanking.

Continuing to run can be a couple things but perhaps codes can shed some light..........

Good luck.

 

89Notch

Founding Member

Oct 21, 1999

1,669

0

0

MSU

Apr 21, 2006

#4

• Apr 21, 2006

• #4

It's not pre-igniting is it? Where there is carbon buildup that stays hot and ignites the fuel with no spark... that would be bad.

 

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stangGT87

New Member

Apr 13, 2005

5

0

0

Aurora CO

Apr 21, 2006

#5

• Apr 21, 2006

• #5

i dotn know how to check if it is pre igniting... and i went to auto zone to get my codes checked and after the guy hooked up the reader it started smoking... then he tried a new reader and it smoked as well...

 

dastang2

Active Member

Dec 11, 2003

2,020

0

46

tx

Apr 21, 2006

#6

• Apr 21, 2006

• #6

out of time, carbon buildup,running hot, i think egr problems can do this too. it's called dieseling

 

HISSIN50

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

15 Year Member

Nov 29, 1999

31,179

33

129

Apr 21, 2006

#7

• Apr 21, 2006

• #7

Dieseling was much more common on carb'd stuff. I dont think I've ever seen an EFI car diesel.

 

dastang2

Active Member

Dec 11, 2003

2,020

0

46

tx

Apr 21, 2006

#8

• Apr 21, 2006

• #8

it's the same thing regardless of fuel system.

 

Roland69

Sergeant Tangnet

Sep 17, 2005

2,867

2

58

Port Elgin, Ontario

Apr 21, 2006

#9

• Apr 21, 2006

• #9

stangGT87 said:

i dotn know how to check if it is pre igniting... and i went to auto zone to get my codes checked and after the guy hooked up the reader it started smoking... then he tried a new reader and it smoked as well...

Click to expand...

That can't be good that could be a whole dirrerent problem on it's own.

 

HISSIN50

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

15 Year Member

Nov 29, 1999

31,179

33

129

Apr 21, 2006

#10

• Apr 21, 2006

• #10

I'll beg to differ. Without fuel (injectors are off), it's hard for dieseling to occur. The different methods of fuel introduction (carbed vs injectors) is what makes the difference. That's one cool thing about electronically controlled fuel metering.

Some carbs would only flow fuel if the idle solenoid received 12 volts, and this device was to help with dieseling.

 

8

86bluecobra

Advanced Member

Dec 20, 2004

4,265

12

69

B.C. Canada

Apr 21, 2006

#11

• Apr 21, 2006

• #11

perhaps the injectors are not stoping. you said it was only for a few seconds so it could still be dieseling or running on with what little fuel was left at the injectors stopped pulsing. i see your point though hissin.

 

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stangGT87

New Member

Apr 13, 2005

5

0

0

Aurora CO

Apr 22, 2006

#12

• Apr 22, 2006

• #12

But what explains the poping when i accelerate in gear and the sluggish acceleration it just seems to not have any power? and i can rev it up just fine in neutral

 

dastang2

Active Member

Dec 11, 2003

2,020

0

46

tx

Apr 22, 2006

#13

• Apr 22, 2006

• #13

stangGT87 said:

But what explains the poping when i accelerate in gear and the sluggish acceleration it just seems to not have any power? and i can rev it up just fine in neutral

Click to expand...

mentioned above, out of time, egr problem,running hot,fuel pump,clogged cats could be making things really hot in there.