• Tiny
  • leannegreg
  • 1995 Mitsubishi FTO

Engine Performance problem
1995 Mitsubishi FTO V12 Two Wheel Drive Manual 102432 miles

hi my rev counter will not go over 6.5 k although the dials go right up to 9 it feels like there is some sort of limiter on there or it is red lining at 6.5 but surely that cant be right? Any help be apptreciated

Monday, October 12th, 2009 AT 5:48 AM

1 Answer

  • 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, October 12th, 2009 AT 6:18 AM

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