1997 Volvo 850 Repair Question
Topics covered: Sensor, Spark, Spark plugs.
Mileage: 240,000 miles.
Mileage: 240,000 miles.
Asked on August 31, 2011
This car has a 5 cyc. nonturbo motor got a p0410 code secandary air injection corrected that car still chugs
Replaced: spark plugs, wires, fuel rail, injectors, regulator, still chugs on startup and going down the road
Asked by steve stelznerAnswer
Replied on August 31, 2011
http://www.2carpros.com/articles/engine-hesitates
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.
