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1989 Buick Century acceleration

Tiny
HONDA1100
  • MEMBER
  • 1989 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 117,000 MILES
When first starting up at cold start I accelerate and it sputters and loses power and dies.I have changed plugs and no change. A friend told me to replace the cold start sensor. I have tried to find information on this sensor with no luck. WHAT DO YOU SUGGEST?
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Saturday, January 16th, 2010 AT 7:15 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
I suggest you 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
Cap and Rotor
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Saturday, January 16th, 2010 AT 7:30 PM

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