slow accelaration

1978 PLYMOUTH VOLARE
118,258 MILES • 6 CYL • AUTOMATIC
Avatar
DJGREEN12
  • MEMBER
  • 1 POST
well i have a 78 plymouth volare it has been idleing real low and the accelaration is slow i changed the spark plugs and wires that didnt help
Feb 18, 2011 at 3:44 AM
Advertisement
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.
Feb 18, 2011 at 4:10 AM