84 Stalling

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Jul 4, 2009 | 08:42 AM

Laurensdad

Thread Starter

8th Gear

Joined: May 2007

Posts: 8

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84 Stalling

Hey Folks, Early 1984 been running great for the past month. Starts fine. Now keeps stalling once I put it in reverse.

Any ideas ???

Help I want my baby back !!!!

Jul 4, 2009 | 11:21 AM

7thvet

Melting Slicks

Joined: May 2005

Posts: 3,134

Likes: 11

From: At the St. Louis Playboy club.

Does it stall when you put it in forward?
Need more info.

Jul 4, 2009 | 12:15 PM

Laurensdad

Thread Starter

8th Gear

Joined: May 2007

Posts: 8

Likes: 0

Thanks for your help.

84 Crossfire starts fine stalls in reverse and sometimes in drive. Idles rough.

Could be bad gas. Wife put 25 liters in and it started to bug up. Engine light is on as well. EErrrrrrrr

Is there something more I should look for to help pin point the problem???

Thanks again !!

Jul 4, 2009 | 01:22 PM

CFI-EFI

Race Director

Joined: Sep 2000

Posts: 17,298

Likes: 33

From: The Top of Utah

Quote:

Originally Posted by Laurensdad

Could be bad gas. Wife put 25 liters in and it started to bug up. Engine light is on as well. EErrrrrrrr

Why would gas put in by your wife cause you to suspect it is bad? Bad gas won't cause a check engine light.

Quote:

Originally Posted by Laurensdad

Is there something more I should look for to help pin point the problem???

Thanks again !!

More than what? What have you looked "for to help pin point the problem???" What codes are set?

RACE ON!!!

Jul 5, 2009 | 01:37 PM

woody1243

Instructor

Joined: Jun 2004

Posts: 155

Likes: 1

From: Melbourne Florida

Pull the code by short across pins A and B on ALDL connector (first 2 pins on top right of connector) and read codes fron check engine light. It should read 1 the 2 three times then it will count the codes from there. CFI-EFI correct me in the number of 1 and 2 before error codes are displayed. Then give us that information. CFI-EFI is correct unless that was really bad gas and still shouldn't give up a code. Get back to us.
Woody

Jul 6, 2009 | 11:57 AM

CFI-EFI

Race Director

Joined: Sep 2000

Posts: 17,298

Likes: 33

From: The Top of Utah

Quote:

Originally Posted by woody1243

CFI-EFI correct me in the number of 1 and 2 before error codes are displayed.

That is correct. Every code will flash, appear, three times. The code "12" will appear three times. Then the first code will appear three times. The second code will follow the first, again three times. When it flashes a "12" again, it has displayed all the codes set. If you missed something or want to double check, the codes will still be there if you want to run through them again. We know he has a code set because of the check engine light, but when just checking without the CE light, when the code "12" flashes the 4th time, you know you have no codes set. It will always flash the code "12". If it doesn't, consult your FSM.

Quote:

Originally Posted by woody1243

CFI-EFI is correct unless that was really bad gas and still shouldn't give up a code. Get back to us.
Woody

There is no gas bad enough to set a code. How? What sensor reading what condition?

RACE ON!!!

Jul 6, 2009 | 12:21 PM

woody1243

Instructor

Joined: Jun 2004

Posts: 155

Likes: 1

From: Melbourne Florida

Only one I would even possibly think of would be O2 sensor but like CFI-EFI has stated it could only happen when pigs fly. What is idle speed in neutral and does it last a few seconds once in gear or straight to shut off?

Jul 6, 2009 | 01:20 PM

jhammons01

Le Mans Master

Joined: May 2006

Posts: 9,226

Likes: 9

From: Irvine Ca

It's just a clogged Cat. (I sound so confident) One of the screens finally rusted through and fell....blocking the path.

Uncork the headers and see if you have the same problems.

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Jul 6, 2009 | 01:50 PM

CFI-EFI

Race Director

Joined: Sep 2000

Posts: 17,298

Likes: 33

From: The Top of Utah

Quote:

Originally Posted by jhammons01

It's just a clogged Cat. (I sound so confident) One of the screens finally rusted through and fell....blocking the path.

Uncork the headers and see if you have the same problems.

That can certainly cause problems, but it shouldn't cause the engine to stall as soon as it is put in gear. It shouldn't set a code either.

RACE ON!!!

Jul 6, 2009 | 01:52 PM

#10

jhammons01

Le Mans Master

Joined: May 2006

Posts: 9,226

Likes: 9

From: Irvine Ca

That is true...I was overlooking the SES light thing...

Jul 6, 2009 | 02:00 PM

#11

CFI-EFI

Race Director

Joined: Sep 2000

Posts: 17,298

Likes: 33

From: The Top of Utah

RACE ON!!!

Jul 7, 2009 | 01:59 PM

#12

Laurensdad

Thread Starter

8th Gear

Joined: May 2007

Posts: 8

Likes: 0

Thank you to everyone who has posted to my request. Once again my Corvette brothers and sisters have come through for me.

The car flashed a code 33. As it turned out, the vacuum hose had pulled off of its connection.

BUT, I wouldn't have found that if it wasn't for all of your help and suggestions.........

Your all the best.......

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