1994 Nissan Micra slow speed?

1994 NISSAN MICRA
77,000 MILES • 4 CYL • 4WD • MANUAL
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UMAIR786
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  • 1 POST
hi, im having problems with my car's speed. my car takes ages to move when going slight uphill and engine also makes noises. it is very slow to strat up with and picking up speed.
Jun 28, 2009 at 5:03 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 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
Jun 28, 2009 at 5:18 PM
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