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1997 Mazda 626 iM not sure the category, sorry.

Tiny
JOSEDELGADO
  • MEMBER
  • 1997 MAZDA 626
1997 Mazda 626 4 cyl Two Wheel Drive Automatic

i just bought a used car, every thing seems fine with the exception that when I press on the gas it seems like it doesnt accelerate properly, meaning that I have to really push on the gas in order for it to go, once it gets rolling its good but when I get to 60 or higher it starts to shake my steering wheel, what can this be, please help, thank you.
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Saturday, August 8th, 2009 AT 6:06 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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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Saturday, August 8th, 2009 AT 7:12 PM

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