Engine shuts off when driving?

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Its on the air intake
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
JASONZAIDA
  • MEMBER
  • 4 POSTS
This is the air intake, no meter.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
It has a MAP sensor on rear of intake. Check the vacuum line to it, if leaking it will cause the problems you describe.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
ICEBLUE70
  • MEMBER
  • 2 POSTS
  • 1991 TOYOTA COROLLA
  • 1.6L
  • FWD
  • AUTOMATIC
  • 85,000 MILES
When I crank this car it does not act up until a couple of minutes. When you give it gas it falls on its face, but when you let up off the pedal it catches up. It does not do it every time either. I have replaced fuel filter and also fuel pump, but it kind of acts like it is running out of gas. Do not think it has a mass airflow, so I am kind of stumped. Maybe oxygen sensor, any help be great thanks.
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If it has a carburetor which I think it is probably time for a rebuild of carburetor. if fuel injected, then scan for codes and check fuel pressure with a gauge.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
ICEBLUE70
  • MEMBER
  • 2 POSTS
It is fuel injected, I will check pressure and let you know.
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Check with live data and see if the throttle position sensor is reacting, as it may be faulty but still in the parameter that will not set a code for a fault.
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
IJPABS
  • MEMBER
  • 1 POST
  • 1990 TOYOTA COROLLA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 102,000 MILES
I have a 1990 toyota corolla, when you first get in the car and drive for about 2 miles the car shutters and then dies, like you just turned off the fuel, but let it sit for just a moment I will restart and go alittle further then do it again, sometime for 3 to 5 more times, then it just quits acting up and drive fine the rest of the time. At first I thought it was the fuel pump but ruled that out, its almost like it gets vapor locked, could this be some kind of sensor causing this, someone told me that they believe there is something that I can spray into the inlet of where the fuel line enters the carbarator or should I be looking for something else. I had a diagnostics done with no hits
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Sounds more like the ignitor in the distributor. When this happens again, spray some starting fluid in the intake, if it runs a few seconds, it is fuel related, if not it is ignitor, coil.
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+1
Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
SMITH33124
  • MEMBER
  • 1 POST
  • 1990 TOYOTA COROLLA
  • 200,000 MILES
The car has sat for about 6 months before it was given to me. Had some rear end work completed on the car. Once I picked up the car I filled the car with gas on a Friday. Drove over the weekend on Sunday I topped the gas off. By Monday the car started acting sluggish and the car began to die on me. It would not turn over until after a couple of minutes. Appr 10 mintues the car would start up and drive a little down the the road and die again. We changed the spark plugs, checked the battery and alternator on Tuesday. Wednesday drove the car again and the same issue of the car dying happened again. It would sputter and check engine light would come on but not stay on. If we let the car sit it would start right back up again. We added c foam to the gas and change the fuel filter. The car still did the same thing. Our next step, we changed the Distributor cap and wires, the distributor rotor, and coil. I let the car run for about 20 minutes and then drove it. It runs fine idle. Its when we are driving that it kills. It sputters and sometimes I can give it gas and it will keep going. Then sometimes it will die at the next stop and/or will die when we go to accelorate. What could be the problem? What should I look for, check, and change next?
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
I would still run a scan and look at getting the fuel pressure checked and the injectors serviced, it may be getting very sticky after sitting around for so long, also the fuel may be contaminated, take a sample and check for water or the fuel smelling off.
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
ALAINA_ROCHA
  • MEMBER
  • 3 POSTS
  • 1990 TOYOTA COROLLA
  • 195,000 MILES
Lright here is a little bit of history. I had the radiator and thermostat replaced in my car and a few days later the check engine light came on. I pulled up the diagnostic codes which were 12 and 21. Googled those codes and 12 had something to do with the rpm signal from the distributor which a friend adjusted and the light went off. A few days later the light scame on again, at which point I replaced the O2 sensor and changed the oil while at it. The light went off once again. A few days later I started the car and was backing up when it started sputtering, then the check engine and oil light came on at the same time and the car died. Checked the oil and it was fine. What could cause this?
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Did the car overheat? It may have damaged the motor.

Start with basics, fuel pressure, compression and spark tests.

Code 12 is normal with key on engine off. Nothing he did changed this code. 21 is tps which could need adjusting, could be bad or wiring issue.

Roy
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Did you erase the previous codes and recheck them again?
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
ALAINA_ROCHA
  • MEMBER
  • 3 POSTS
My dad help me adjust the timing today and that seemed to do the trick! The light is off for now.
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
How did he do that? I believe you have an idling fault and cleaning the throttle body and IAC coupled with adjusting the idling speed would solve the prioblem

If you keep adjusting evrything, you stand the chances of getting everything out of specs if you do not have any equipment to take readings.
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
ALAINA_ROCHA
  • MEMBER
  • 3 POSTS
I think you are right, drove the car today and it died every time I came to a stop
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
ELIZABETHMCDANIEL
  • MEMBER
  • 1 POST
I just went through this same ordeal, what finally fix my car it was the ignition coil, it had a crack in it. I got the part at auto zone for $40.00 thats with tax, and had it replaced for 45 dollars labor
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Thanks for the input.
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Thursday, January 21st, 2021 AT 2:53 PM (Merged)

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