1994 Chevy Beretta

Tiny
JAYF1019
  • 1994 CHEVROLET BERETTA

Engine Performance problem
1994 Chevy Beretta 6 cyl Front Wheel Drive Automatic 102 miles

car jerks when accelerate stalls in jerks at red light smell raw gas

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Monday, November 9th, 2009 AT 6:22 PM

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Tiny
RASMATAZ
  • MEMBER

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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Monday, November 9th, 2009 AT 6:40 PM

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