1997 Toyota Tercel Excelleration

Tiny
LESSIE FORD
  • MEMBER
  • 1997 TOYOTA TERCEL
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 134,000 MILES
My car is slow to excellerate from 0 -20, then 20-35 and so on unless I take my foot off the excelerator to adjust the speed. Is this transmission or spark plugs?
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Tuesday, January 5th, 2010 AT 9:04 PM

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Tiny
2CEXPT
  • MEMBER
Check and test the following below:

Oxygen Sensor
Catalytic 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
Coil and Rotor
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Tuesday, January 5th, 2010 AT 11:49 PM

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