Check Engine Light HELP!!!!

94chirps

New Member

Jun 25, 2018

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USA

Sep 3, 2018

#1

• Sep 3, 2018

• #1

Hello everyone I'm having a problem in my 94 Mustang GT when I start the car after driving for awhile the check engine light comes on then when I shut it off and start it back up it's off until I drive a little while and comes back on any help would be appreciated... I've never heard of a check engine light resetting itself

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Massachusetts

Sep 3, 2018

#2

• Sep 3, 2018

• #2

Intermittent fault. Most likely it's still stored in the continuous memory codes.

Pull the codes with a paper clip, or buy a cheap innova 3145 reader

 

94chirps

New Member

Jun 25, 2018

21

0

1

USA

Sep 3, 2018

#3

• Sep 3, 2018

• #3

Mustang5L5 said:

Intermittent fault. Most likely it's still stored in the continuous memory codes.

Pull the codes with a paper clip, or buy a cheap innova 3145 reader

Click to expand...

Thanks man much appreciated

 

mikestang63

SN Certified Technician

Aug 27, 2012

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In the garage

Sep 3, 2018

#4

• Sep 3, 2018

• #4

my guess is a bad O2 sensor, but like Mike said run the codes

 

jrichker

StangNet's favorite TOOL

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Mar 10, 2000

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Sep 3, 2018

#5

• Sep 3, 2018

• #5

Dump codes sticky

Look at the top of the 5.0 Tech forum where the sticky threads are posted. One of them is how to dump the computer codes. Codes may be present even if the CEL (Check Engine Light) isn’t on. You don’t need a code reader or scanner – all you need is a paper clip, or if your lady friend has a hair pin, that will do the job.
I highly suggest that you read it and follow the instructions to dump the codes. http://www.stangnet.com/mustang-forums/threads/how-to-pull-codes-from-eec4.889006/