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Engine shuts off when the accelerator pedal is pressed to the floor

Tiny
RENETTE BACA
  • MEMBER
  • 1993 TOYOTA PICKUP
  • 3,000 MILES
The truck will start, and idle, but when I give it gas, it hesitates at first revs up. If I put the pedal to the floor and hold it, it will shut off. If I put the pedal to the floor and let it off, it chokes a little bit, then goes back to idle. Just replaced the mass airflow sensor. I've replaced the knock sensor and harness, the O2 sensor, throttle positioning sensor (but nothing changed, so I returned it), distributor, and igniter. When I was replacing the mass airflow sensor, I noticed a wired connector that was not connected to anything. I cannot find what it goes to anywhere. By the way, it's a 1993 Toyota 4wd truck.
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Wednesday, April 13th, 2022 AT 8:24 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,665 POSTS
These had problems with clogged fuel filters because they can be difficult to change out. Here is the location of the filter in the diagrams below. I would try that first and here is a guide that can help as well:

https://www.2carpros.com/articles/engine-has-low-power-output

The Fuel Filter is Located at the right side of the engine above the starter motor. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

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Thursday, April 14th, 2022 AT 12:05 PM

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