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Engine will not start up and run?

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Are you loosing spark when its not starting?
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Tuesday, December 29th, 2020 AT 9:21 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
What was the trouble code retrieved?
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Tuesday, December 29th, 2020 AT 9:21 AM (Merged)
Tiny
VACAD05
  • MEMBER
  • 5 POSTS
The computer code is 31.
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Tuesday, December 29th, 2020 AT 9:21 AM (Merged)
Tiny
VACAD05
  • MEMBER
  • 5 POSTS
I do not recall toyota telling me whether it lost spark. After stalling the ca when trying to start the car the car does not crank. Only the dash board lights come on. After sitting for about 10 minutes the car will start up but runs rough.
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Tuesday, December 29th, 2020 AT 9:21 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
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So do you have a multi meter to do some testing?Have you had the battery tested and made sure the battery cables clean and tight?
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Code 31 - MAP sensor signal. Is this code new or was there all along?
Was there any other codes previously?

When engine stalled, by does not crank, do you mean the starter does not even click or clicks but does not turn the engine?
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
VACAD05
  • MEMBER
  • 5 POSTS
The battery was installed in Jan 2012. At that time the battery cables were cleaned. And they appear to still be on tight.

When the engine stalled the engine does not even click. Nothing happens just the dashboard lights come on. After sitting for 10 minutes or so the car starts up.
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
This is a fault with the starting circuit and not a problem with battery.

It could be a faulty ignition switch, which explains the stalling. Do you have a DVOM or test light to perform testings?
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
I will let you finsh this one for me Khlow2008
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
VACAD05
  • MEMBER
  • 5 POSTS
No, I don't have any tools for testing. What would I be looking for if I borrowed one from someone?
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You would be looking for a missing power supply or open in the starting circuit. You need at least a testlight or DVOM.

Saturntech9, you running out on me? Lol.
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
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Iam on vacation in las vegas right now so it would help me out if you finished this one.I have been trying to do the questions while I have been gone. But I dont get up to my room much where my lap top is.
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
So you decided to go for a different type of table. Enjoy yourself and good luck.
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
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Thanks I dont play table games and I could use some luck lol.
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
PRECOTIA
  • MEMBER
  • 1 POST
  • 1994 TOYOTA CELICA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 128,000 MILES
The car was running fine and then the spark plugs were changed. The engines was revved up twice and when it idled down it cut off like you turned the key off. The distributer cap and rotary button was changed and still no fire. What could the problem be?
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

You will have to check a few basic things first so we know what we are looking at.

Check for spark, injection pulse, fuel pressure, cam is rotating. Any fault codes set (light may not be on) if you can check these things first and re post that would be a big help.

Mark (mhpautos)
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Tuesday, December 29th, 2020 AT 9:22 AM (Merged)

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