Mass air flow sensor

Tiny
SCOOZE007
  • MEMBER
  • 1986 CHEVROLET CELEBRITY
  • 2.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 15,500 MILES
The car reads code 13. My check engine light come on. I have the oxygen sensor unplugged. I am putting a new mass air flow sensor on it right now and plugging ever thing in and disconnecting the battery to re code it and then drive it. If the engine light comes on again, what could be wrong with the car?
Wednesday, September 28th, 2016 AT 5:59 AM

13 Replies

Tiny
AL514
  • MECHANIC
  • 5,267 POSTS
Code P0013?
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Wednesday, September 28th, 2016 AT 6:04 AM
Tiny
SCOOZE007
  • MEMBER
  • 5 POSTS
What is code poo13
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Wednesday, September 28th, 2016 AT 6:07 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Good question. They did not have "P" codes in 1986.
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Wednesday, September 28th, 2016 AT 6:08 AM
Tiny
AL514
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Okay, I found your code 13. Took a few minutes. It is Open Oxygen sensor circuit. Obviously from it being unplugged.
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Wednesday, September 28th, 2016 AT 6:08 AM
Tiny
AL514
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Not sure why your putting a new mass air flow on it? What is happening with the car?
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Wednesday, September 28th, 2016 AT 6:10 AM
Tiny
SCOOZE007
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  • 5 POSTS
What do you think could be wrong?
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Wednesday, September 28th, 2016 AT 6:10 AM
Tiny
AL514
  • MECHANIC
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What is happening with the car?
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Wednesday, September 28th, 2016 AT 6:13 AM
Tiny
AL514
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A 1986 with 15,000 miles on it. Been sitting a while right?
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Wednesday, September 28th, 2016 AT 6:14 AM
Tiny
SCOOZE007
  • MEMBER
  • 5 POSTS
I hope the engine light goes out with a new mass air flow sensor but if it does not what could be wrong if the check engine line comes on? We will disconnect the battery to reset it. The car has 150,000, 00 miles, I bought the car new. It is a great car when it runs well, it is garage kept and I drive it everyday. I will make sure everything is plugged in. It started hesitating going up a hill. I maintenance this car every 3,000 miles oil changes, tire rotation, the works, this car is well taken care of and maintained.
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Wednesday, September 28th, 2016 AT 6:31 AM
Tiny
AL514
  • MECHANIC
  • 5,267 POSTS
Well your code 13 is your oxygen sensor. Not the mass air flow. Have you changed the fuel filter at all? Spark plugs? Any of those type things?
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Wednesday, September 28th, 2016 AT 6:43 AM
Tiny
AL514
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If the light comes back on, you will have to pull the code again and let us know what it is.
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Wednesday, September 28th, 2016 AT 6:44 AM
Tiny
SCOOZE007
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I have done all that already.
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Wednesday, September 28th, 2016 AT 6:48 AM
Tiny
AL514
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  • 5,267 POSTS
So you plugged the oxygen sensor back in and the code 13 came up? I am a bit confused as to where you are at with your diagnosis.
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Wednesday, September 28th, 2016 AT 6:50 AM

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