1992 Toyota Landcruiser Poor weak acceleration

Tiny
GADDIEL GARCIA
  • MEMBER
  • 1992 TOYOTA LANDCRUISER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
After many years of good service one day the check engine light came on and after that it starts ok and stays in idle when I put the trans in drive and accelerate there is no power in the engine the trans changes ok but there is a very weak power to move fast or up a hill please I just lost my job and canot pay a mechanic help please.G. Garcia.
Wednesday, December 9th, 2009 AT 10:59 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
One of the following could be causing your problem:

Oxygen sensor
Converter
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
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Wednesday, December 9th, 2009 AT 11:26 PM

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